In wireless communication, RF testing, electronic equipment, and high-frequency module applications, the available installation space inside a device is often limited. Conventional RF cable assemblies may be difficult to install in compact equipment due to their size and routing requirements. To meet the connection needs of compact electronic devices, Kinghelm offers the KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly. This assembly features SSMA female connectors on both ends and flexible RG178 coaxial cable with a total cable length of 60mm. Its compact construction and flexible routing make it suitable for short-distance, high-frequency signal connections in space-constrained equipment. Product Description: SSMA female to SSMA female RF Cable Assembly, using brown RG178 coaxial cable with a cable length of 60mm. Brand Name: Kinghelm Part Number: KH-SSMAK-SSMAK-RG178-60MM Packaging: Bag Gross Weight: 7.3g The overall RF Cable Assembly is compact and easy to install and route inside equipment with limited space. It can be used for RF modules, communication modules, testing equipment, and other applications requiring short-distance high-frequency signal connections. Kinghelm KH-SSMAK-SSMAK-RG178-60MM Product Image SSMA Female Connectors for Compact RF Connections The KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly features SSMA female connectors with female contacts on both ends. Both connectors are straight-type and gold-plated, providing a compact connection solution for compatible SSMA RF interfaces. SSMA connectors are suitable for applications where a small form factor and reliable RF connection are required. Their compact design makes them suitable for wireless communication equipment, RF modules, high-frequency electronic devices, test instruments, and other space-constrained systems. With SSMA female connectors on both ends, this RF Cable Assembly can be used to connect compatible SSMA interfaces directly. The integrated cable assembly can simplify connections between RF modules and reduce the need for additional adapters in suitable applications. Flexible RG178 Coaxial Cable for Easy Installation The RF Cable Assembly uses brown RG178 coaxial cable with an approximate outer diameter of 1.8mm. The slim and flexible cable construction makes it suitable for internal wiring and short-distance RF signal connections in electronic equipment. The 60mm cable length is designed for applications where two RF interfaces are located relatively close to each other. Compared with longer cable assemblies, the short cable length helps reduce excess wiring inside compact equipment and allows a cleaner internal layout. The flexible RG178 coaxial cable can also be routed according to the internal structure of the device, making the assembly convenient for connections between PCBs, RF modules, wireless communication modules, and other high-frequency components. Black Heat-Shrink Tubing for Added Protection The KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly is equipped with black heat-shrink tubing measuring approximately OD 2.5 × 1.5mm. The heat-shrink tubing covers the corresponding connection area, helping protect the cable assembly while providing a neat and organized appearance. In compact electronic equipment, proper cable routing and connection protection are important during installation and assembly. The heat-shrink tubing helps keep the connection section compact and organized, making the RF Cable Assembly convenient for equipment installation, testing, and production. 300V Withstand Voltage The KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly has a withstand voltage of 300V and can be used in electronic equipment and RF connection applications that meet the corresponding electrical requirements. When selecting an RF Cable Assembly for a specific application, users should consider the operating voltage, operating frequency, impedance, connector specifications, installation conditions, and other system requirements. For applications with specific RF performance requirements, the complete system specifications should be evaluated before use. Factors such as operating frequency, cable length, connector matching, installation method, and operating environment may affect the actual performance of an RF Cable Assembly. Designed for Short-Distance High-Frequency Signal Connections With its compact SSMA connectors, flexible RG178 coaxial cable, and 60mm cable length, the KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly can be used in a variety of short-distance RF signal connection applications. Typical applications include wireless communication equipment, RF modules, high-frequency electronic modules, RF testing equipment, test fixtures, PCB-to-module connections, and other electronic devices requiring compact RF interconnections. For compact communication equipment and electronic instruments where internal installation space is limited, this RF Cable Assembly provides a practical way to connect compatible SSMA interfaces while keeping the internal wiring short and organized. Compact Construction for Space-Constrained Equipment One of the key features of this RF Cable Assembly is its compact overall construction. The combination of small SSMA connectors and slim RG178 coaxial cable allows the assembly to occupy relatively little space compared with larger RF cable solutions. The 60mm cable length is particularly suitable for short-distance connections between closely positioned components. In equipment where internal space is limited, a properly sized RF Cable Assembly can help simplify cable routing and reduce unnecessary cable loops. This makes the product suitable for applications where both connector compatibility and installation flexibility are important considerations. Kinghelm KH-SSMAK-SSMAK-RG178-60MM Specification Bag Packaging for Convenient Storage and Use The KH-SSMAK-SSMAK-RG178-60MM RF Cable Assembly is supplied in bag packaging, with a gross weight of approximately 7.3g. The clearly defined part number and product specifications make it convenient for identification, storage, research and development, testing, assembly, and production applications. Overall, the Kinghelm KH-SSMAK-SSMAK-RG178-60MM is a compact SSMA Female to SSMA Female RF Cable Assembly designed for short-distance, high-frequency signal connections. It features SSMA female connectors with female contacts on both ends, straight gold-plated connectors, and flexible brown RG178 coaxial cable. With a 60mm cable length, approximately 1.8mm cable outer diameter, OD 2.5 × 1.5mm black heat-shrink tubing, and 300V withstand voltage, this RF Cable Assembly is suitable for compact electronic equipment where space, cable routing, and connector compatibility are important considerations. Depending on the specific interface and technical requirements, the KH-SSMAK-SSMAK-RG178-60MM can be considered for wireless communication modules, RF testing equipment, high-frequency electronic modules, PCB-to-module connections, test fixtures, and other short-distance RF signal interconnection applications. About Kinghelm According to Song Shiqiang, Kinghelm’s top 20 best-selling products cover Type-C and HDMI connectors, automotive wiring harnesses, adapter cables, pin headers, terminals, and other categories. The company also has strong capabilities in RF coaxial connectors such as SMA, IPEX, and MCX, as well as RF cables and antennas, including GPS antennas. Among them, KH-IPEX-K501-29 has sold more than 200,000 units and has been featured on the LCSC homepage, while KH-SMA-K513-G has appeared on the homepage best-selling list multiple times. KH-TYPE-C-16P is one of Kinghelm’s top-five best-selling Type-C horizontal SMT female connectors. Other consistently popular products include KH-SMA-KE-Z, KH-SMA-KWE17-G, KH-MMCX-Z, KH-3216-A35, KH-IPEX4-2020, KH-RJ45-58-8P8C, and KH-RCH56-8P8C-D. These products are widely used in communications, consumer electronics, automotive electronics, and IoT applications. Leveraging its strengths in R&D, quality, and supply chain management, Kinghelm focuses on independent innovation and domestic alternatives, continuously expanding its product portfolio and earning market recognition with a diverse range of best-selling products. KH-SSMAK-SSMAK-RG178-60MMView Product Details

In high-frequency electronic equipment, wireless communication modules, and various RF systems, cables may be relatively small components, but they play an important role in stable signal transmission and efficient internal device layout. This is especially true for compact electronic devices, where conventional RF cables with larger dimensions can be limited by installation space, bending radius, and connector orientation. For applications that require short-distance, high-frequency signal transmission within a confined space, a compact RF coaxial cable with flexible connector configurations can make equipment design and assembly more convenient. Kinghelm KH-SSMAJW-SSMAK-RG1.37-60MM Product Image 1. Product Specifications Brand: Kinghelm Model: KH-SSMAJW-SSMAK-RG1.37-60MM Product Type: RF Coaxial Cable Cable Length: 60 mm Coaxial Cable: RG1.37 black coaxial cable Cable Outer Diameter: Approx. 1.3 mm One-End Connector: SSMA female, female contact (socket), straight type, gold-plated Other-End Connector: SSMA male, male contact (pin), right-angle type, gold-plated Heat-Shrink Tubing: OD 2.5 × 1.5 mm Tubing Color: Black Rated Voltage: 300 V Packaging: Bag 2. 60 mm Compact Design for Space-Constrained Connections The Kinghelm KH-SSMAJW-SSMAK-RG1.37-60MM RF coaxial cable is designed for compact connection applications. With an overall length of only 60 mm, it uses RG1.37 black coaxial cable and features an SSMA right-angle male connector on one end and an SSMA female straight connector on the other, resulting in a compact and space-efficient assembly. In wireless communication equipment, RF modules, test modules, embedded electronic devices, and similar products, internal installation space is often limited, while the distance between interfaces may be relatively short. Excessively long cables can make routing more difficult and may require additional looping, securing, or cable management. The 60 mm cable length is well suited to short-distance connections and allows interfaces within a device to be connected directly according to their physical positions, helping simplify assembly and cable routing. For electronic equipment designed with miniaturization and modularity in mind, a compact cable assembly can also reduce interference with surrounding components and occupy less valuable internal space. 3. SSMA Right-Angle Male and Straight Female Connectors for Flexible Installation One of the key features of this product is its combination of two different SSMA connector configurations. One end is an SSMA male right-angle connector with a male pin, while the other end is an SSMA female straight connector with a female contact. Both connectors feature gold-plated contacts. The right-angle design changes the direction in which the cable exits the connector. When space around an interface is limited, or when the cable needs to be routed along the edge of a device or parallel to a PCB, a right-angle connector can help reduce the space required for cable routing and provide greater installation flexibility. The other end uses a straight SSMA female connector for connection to a corresponding SSMA male interface. The male-to-female configuration allows the cable to be used for specific RF interconnection requirements between compatible interfaces. For R&D engineers, electronics engineers, and production technicians, selecting an appropriate connector configuration can help simplify internal RF cable routing and facilitate connections between modules. 4. RG1.37 Coaxial Cable for Compact High-Frequency Connections The cable assembly uses RG1.37 black coaxial cable with an outer diameter of approximately 1.3 mm. Compared with larger-diameter coaxial cables, the RG1.37 format provides a more compact solution for applications where internal installation space is limited. A coaxial cable typically consists of an inner conductor, dielectric insulation, and an outer shielding structure, forming a controlled transmission path for RF and high-frequency signals. Coaxial interconnection is widely used in RF modules, wireless communication equipment, and other high-frequency electronic systems. For a short 60 mm connection, the small-diameter RG1.37 cable helps minimize the physical footprint of the cable assembly while providing a practical solution for internal RF interconnection. 5. Gold-Plated Connectors for RF Interconnection Applications Both connectors are gold-plated. The SSMA female connector features a straight configuration with a socket contact, while the SSMA male connector features a right-angle configuration with a male pin. As important components in an RF signal path, connectors must provide reliable mechanical mating and stable electrical contact. Gold-plated contact surfaces are commonly used in electronic connectors to support reliable contact performance and durability in appropriate applications. The combination of SSMA connectors, RG1.37 coaxial cable, and a 60 mm overall length gives this cable assembly a compact form factor that is well suited to short-distance RF interconnections in space-constrained electronic equipment. 6. Black Heat-Shrink Tubing for Added Protection The cable assembly is fitted with OD 2.5 × 1.5 mm black heat-shrink tubing. The heat-shrink tubing is primarily applied around the transition area between the cable and connector, providing additional protection and helping reinforce the cable-to-connector interface. For electronic equipment that requires installation, adjustment, or maintenance, maintaining the structural integrity of the transition area between the coaxial cable and connector is important for reliable cable management. The black heat-shrink tubing matches the black RG1.37 coaxial cable, giving the assembly a clean and consistent appearance. Its compact size and black finish also make it convenient for organized internal cable routing. 7. 300 V Rated Voltage for Applicable Equipment Connections This model is specified with a rated voltage of 300 V. When selecting a cable for a particular application, the actual operating voltage, frequency, power level, interface specifications, and other system requirements should be considered together. The rated voltage alone should not be used to determine whether the cable is suitable for a specific RF system. For RF equipment, connector type, cable specification, connector configuration, installation dimensions, and other mechanical and electrical parameters are also important considerations. Engineers should therefore evaluate the complete system requirements when designing an RF interconnection solution. Kinghelm KH-SSMAJW-SSMAK-RG1.37-60MM Datasheet 8. Suitable for Short-Distance Connections Inside Electronic Equipment With its 60 mm cable length, approximately 1.3 mm cable diameter, and right-angle male connector, the KH-SSMAJW-SSMAK-RG1.37-60MM is particularly suited to RF interconnection applications where installation space is limited. Potential applications include wireless communication equipment, RF modules, communication terminals, test and measurement equipment, embedded electronic devices, and other products that use compatible SSMA interfaces. Depending on the specific interface layout, the cable can be used for short-distance RF connections between modules or between RF interfaces inside a device. For designs with limited PCB space or closely positioned interfaces, the 60 mm cable length can help reduce excess cable while the right-angle male connector provides greater flexibility in cable routing and allows the assembly to better conform to the internal mechanical structure of the equipment. 9. Conclusion As modern electronic equipment continues to become smaller and more highly integrated, connectors and cable assemblies must also adapt to increasingly compact internal layouts. The Kinghelm KH-SSMAJW-SSMAK-RG1.37-60MM RF coaxial cable features a compact 60 mm length, an SSMA right-angle male connector on one end, and an SSMA straight female connector on the other. It uses RG1.37 black coaxial cable to create a compact and flexible RF interconnection solution. With its combination of compact dimensions, practical connector configuration, and small-diameter coaxial cable, this cable assembly is designed with space-constrained, short-distance, high-frequency signal interconnection applications in mind. For equipment requiring internal RF cable routing, module-to-module interconnection, or short-distance RF connections between compatible SSMA interfaces, the KH-SSMAJW-SSMAK-RG1.37-60MM can be considered based on the specific interface requirements, electrical specifications, and available installation space. As electronic equipment moves toward greater miniaturization, modularization, and integration, a properly sized and appropriately configured RF cable can also contribute to more efficient internal layouts. For engineers looking for a compact SSMA interconnection solution, the KH-SSMAJW-SSMAK-RG1.37-60MM provides one option for space-constrained RF applications. About Kinghelm Kinghelm (www.kinghelm.net), has been specializing in electronic interconnection and RF products for nearly 20 years. The company offers a broad portfolio of popular and high-demand products, with key models including KH-IPEX-K501-29, KH-SMA-K513-G, KH-TYPE-C-16P, KH-IPEX4-2020, KH-RJ45-58-8P8C, KH-RCH56-8P8C-D, KH-PJ-209-SMT, KH-TYPE-C-W-16P-T, and KH-BNC50-3511. Its product portfolio covers major categories such as RF coaxial connectors, USB connectors, Ethernet connectors, and audio connectors, while also extending to Type-C, SMA, IPEX, MCX, HDMI connectors, automotive wiring harnesses, adapter cables, pin headers, terminals, RF cables, antennas, GPS antennas, Wi-Fi antennas, BeiDou antennas, internal antennas, 4G antennas, ceramic antennas, RF connectors, electronic components, sensors, DC sockets, FPC connectors, waterproof USB connectors, and more than 20 additional product categories. With a focus on stable performance and cost-effective solutions, Kinghelm's products have earned the long-term trust of more than 20,000 customers worldwide and are widely used across communications, automotive applications, industrial IoT, and other advanced technology sectors. KH-SSMAJW-SSMAK-RG1.37-60MMView Product Details

In RF communication systems, wireless devices, test equipment, and various electronic products, RF cables play an important role in signal transmission and interconnection between components. A reliable and easy-to-install RF cable designed for space-constrained applications can simplify signal connections between internal modules. The Kinghelm KH-SMBJ-SMBK-RG316-60MM is an SMB male-to-SMB female RF cable assembly featuring straight SMB connectors on both ends. It uses a brown RG316 coaxial cable with a cable length of 60 mm, making it suitable for short-distance connections inside various RF devices and electronic equipment. Kinghelm KH-SMBJ-SMBK-RG316-60MM Product Image 2. Product Specifications Brand: Kinghelm Part Number: KH-SMBJ-SMBK-RG316-60MM Product Type: SMB straight male-to-SMB straight female RF cable assembly Cable Type: RG316 coaxial cable Cable Color: Brown Cable Outer Diameter: 2.5 mm Cable Length: 60 mm Rated Voltage: 300 V Male Connector: Straight SMB male connector with male pin, gold-plated Female Connector: Straight SMB female connector with female contact, gold-plated Protective Sleeve: OD 3.5 × 15 mm The KH-SMBJ-SMBK-RG316-60MM features an SMB male-to-female configuration, with straight connectors on both ends and gold-plated contacts. The cable is made of RG316 coaxial cable with an approximate outer diameter of 2.5 mm. With its compact design and 60 mm cable length, this RF cable assembly is well suited for short-distance connections between interfaces inside electronic equipment. The assembly also includes an OD 3.5 × 15 mm protective sleeve to provide additional protection around the connection area. 3. SMB Connector Design for Convenient Equipment Interconnection SMB is a compact RF coaxial connector designed for applications where space efficiency and convenient connection are important. SMB connectors are widely used in wireless communication equipment, RF modules, test instruments, electronic measuring equipment, and other compact electronic systems. The KH-SMBJ-SMBK-RG316-60MM features an SMB male connector with a male pin on one end and an SMB female connector with a female contact on the other, allowing direct connection between compatible SMB interfaces. Both connectors feature a straight configuration, providing a clean and straightforward orientation for internal cable routing. For PCB-mounted RF interfaces, wireless communication modules, and other compact electronic assemblies, a pre-assembled RF cable can simplify installation and eliminate the need for on-site cable termination. 4. RG316 Coaxial Cable for Short-Distance RF Connections The cable assembly uses brown RG316 coaxial cable with an outer diameter of approximately 2.5 mm. RG316 coaxial cable is commonly used for RF signal interconnection and is valued for its relatively small diameter, light weight, and flexibility. With a 60 mm cable length, this assembly is suitable for connecting RF interfaces located relatively close to each other inside a device. In equipment assembly, a short cable length can help minimize excess cable and keep internal wiring neat and organized. The relatively small cable diameter also makes the cable easier to route around other components in space-constrained electronic equipment. 5. Gold-Plated Connectors for Reliable Connections Both the SMB male and SMB female connectors of the KH-SMBJ-SMBK-RG316-60MM feature gold-plated contacts. Gold plating can help improve resistance to oxidation and corrosion while supporting stable electrical contact during operation. For applications involving equipment testing, debugging, maintenance, and repeated connection and disconnection, standardized SMB interfaces can make installation and servicing more convenient. The male-to-female configuration also allows the cable assembly to connect directly to compatible SMB interfaces, reducing the need for additional adapters in suitable applications. Kinghelm KH-SMBJ-SMBK-RG316-60MM Datasheet 6. Suitable for a Variety of Electronic Applications With its SMB male-to-female configuration, RG316 coaxial cable, and compact 60 mm length, the KH-SMBJ-SMBK-RG316-60MM can be used in a variety of applications, including: Wireless communication equipment RF modules Test and measurement instruments Electronic measuring equipment Signal transmission assemblies RF equipment Electronic devices with compatible SMB interfaces During research and development and testing, pre-assembled RF cable assemblies can provide a convenient way to establish connections between modules. During equipment manufacturing and assembly, engineers can select suitable cable lengths and connector configurations according to the product's mechanical layout, helping simplify installation and improve assembly efficiency. When selecting an RF cable assembly, engineers should consider factors such as connector type, cable length, operating frequency, electrical specifications, installation space, and operating environment. The KH-SMBJ-SMBK-RG316-60MM combines SMB male and female connectors with RG316 coaxial cable to provide a convenient pre-assembled solution for short-distance RF interconnection applications. 7. Selection and Installation Recommendations When using the KH-SMBJ-SMBK-RG316-60MM, the cable should be selected according to the equipment's interface type, operating environment, and specific electrical requirements. During installation, avoid excessive bending, pulling, or mechanical stress on the cable. The connector interfaces should also be kept clean to help minimize connection issues caused by mechanical damage or poor contact. For applications where two SMB interfaces are positioned relatively close to each other, the 60 mm cable length can be considered for short-distance interconnection. If the actual installation distance differs, a cable with an appropriate length should be selected according to the equipment's internal layout. Proper cable routing can help prevent unnecessary mechanical stress on the cable and connectors while keeping the internal assembly neat and organized. Overall, the Kinghelm KH-SMBJ-SMBK-RG316-60MM is an SMB straight male-to-SMB straight female RF cable assembly designed for short-distance connections. It features a 60 mm RG316 brown coaxial cable with an approximate outer diameter of 2.5 mm, gold-plated straight SMB connectors on both ends, and an OD 3.5 × 15 mm protective sleeve. With its compact design and straightforward male-to-female connection configuration, the cable assembly can be used for short-distance interconnection between RF modules, electronic components, and compatible interfaces in a variety of electronic and RF applications. About Kinghelm According to Song Shiqiang, Kinghelm’s key products include the KH-TYPE-C-16P USB connector, KH-IPEX-K501-29 RF coaxial connector, KH-RJ45-58-8P8C Ethernet connector (RJ45/RJ11), and KH-SMA-KE-Z RF coaxial connector. These products are widely used across communication, automotive, industrial control, consumer electronics, and other industries, delivering reliable performance for diverse applications. Leveraging Shenzhen’s well-established Huaqiangbei electronics ecosystem, Kinghelm has served tens of thousands of customers worldwide, providing efficient and reliable one-stop electronic interconnection solutions. Kinghelm also offers a comprehensive product portfolio covering RF connectors, electronic components, sensors, millimeter-wave components, tactile switches, detection switches, toggle switches, push-button switches, micro switches, multifunction switches, illuminated switches, DIP switches, rocker switches, headphone jacks, DC jacks, FPC connectors, waterproof USB connectors, limit switches, encoder switches, tactile push buttons, USB receptacles, and USB Type-C connectors. With flexible customization capabilities, Kinghelm provides tailored solutions for different applications and supports a wide range of precision interconnection requirements. KH-SMBJ-SMBK-RG316-60MMView Product Details

In wireless communication equipment, RF modules, test instruments, and various electronic devices, RF signals often need to be transmitted reliably between different modules and interfaces. For applications where internal space is limited and the connection distance is relatively short, a suitable pre-assembled RF cable assembly can make installation easier while keeping the overall wiring clean and organized. The Kinghelm KH-SMBK-SMBK-RG316-200MM is a pre-assembled RF cable assembly designed for these applications. It features straight SMB female connectors on both ends, RG316 coaxial cable, and a finished length of 200 mm, making it suitable for short-distance RF signal connections. Kinghelm KH-SMBK-SMBK-RG316-200MM Product Image Product Specifications Brand: Kinghelm Model: KH-SMBK-SMBK-RG316-200MM Product Type: SMB-K to SMB-K RF Cable Assembly Cable Length: 200 mm Rated Voltage: 300 V Protective Sleeve: OD 3.5 × 15 mm Connectors: Straight SMB female, gold-plated Connector Configuration: SMB female-to-female Coaxial Cable: RG316, brown Cable Outer Diameter: Approx. 2.5 mm SMB Straight Female-to-Female for Direct RF Connection The most notable feature of this product is its SMB straight female-to-female configuration, also known as SMB-K to SMB-K. When the equipment provides compatible SMB interfaces, this RF cable assembly can be connected directly without additional adapters. SMB connectors are compact and widely used in electronic equipment where installation space is limited. The straight connector design also provides a clear connection direction, making it convenient for internal module connections and equipment wiring. Compared with cutting and assembling coaxial cable on site, a pre-assembled RF cable assembly can be installed directly, saving processing time during equipment assembly and maintenance. 200mm Length for Short-Distance RF Interconnection The 200 mm finished length is designed for short-distance connections between RF modules, communication modules, PCB interfaces, and other electronic components. A suitable cable length is particularly important inside compact equipment. An excessively long cable may create unnecessary slack and make internal wiring difficult to organize, while a cable that is too short may limit installation flexibility. The 200 mm length provides a practical option for many short-distance RF interconnection applications. During installation, the cable can be routed along the structure of the equipment, helping reduce cable clutter and making future maintenance and module replacement easier. RG316 Coaxial Cable for Flexible Routing The cable section uses RG316 brown coaxial cable with an outer diameter of approximately 2.5 mm. Compared with larger coaxial cables, RG316 is relatively compact and flexible, making it suitable for equipment with limited internal space. Electronic devices often contain multiple PCBs, RF modules, power cables, and other components within a confined enclosure. A smaller-diameter RF cable can make routing and installation more convenient. The brown cable jacket also provides easy visual identification when multiple types of cables are used inside the same device. Gold-Plated SMB Connectors Both ends of the cable assembly feature straight SMB female connectors with gold-plated female contacts. The gold-plated contact surface provides good corrosion resistance and helps maintain reliable electrical contact during use. Connector quality is particularly important in RF applications, where stable connections are essential for signal transmission. Since both ends use the same SMB female connector configuration, the cable provides a simple and standardized connection solution for compatible interfaces. Users should confirm connector type and interface compatibility before installation. Protective Sleeve for Added Cable-End Protection The cable-to-connector transition area is equipped with an OD 3.5 × 15 mm protective sleeve. During equipment assembly, movement, and cable routing, the connector tail and cable junction may experience bending or mechanical stress. The protective sleeve provides additional support and protection around this area while also giving the finished cable assembly a cleaner appearance. This type of cable-end protection can be especially useful for RF cable assemblies installed inside compact electronic equipment. Kinghelm KH-SMBK-SMBK-RG316-200MM Specification Pre-Assembled RF Cable Assembly for Easier Installation One of the main advantages of a finished RF cable assembly is that it reduces the need for on-site cable processing. When using bulk coaxial cable, manufacturers may need to cut the cable, strip it, install connectors, and perform additional assembly and inspection. With the KH-SMBK-SMBK-RG316-200MM, the cable length, cable type, and connector configuration are already defined and assembled. This makes the cable convenient for prototype development, laboratory testing, equipment assembly, and production applications. For batch production, standardized RF cable assemblies can also simplify material management and make replacement and maintenance more efficient. Typical Applications The KH-SMBK-SMBK-RG316-200MM is designed for short-distance RF connection applications requiring an SMB female-to-female configuration. Typical applications may include: Wireless communication equipment RF modules Communication modules RF test equipment Electronic test instruments RF laboratory equipment PCB and module interconnection Internal equipment wiring IoT and other RF-enabled devices Before selecting an RF cable assembly, users should confirm the connector type, operating frequency, impedance, cable length, voltage, and installation environment according to the specific application requirements. If the equipment interfaces are compatible with the SMB female connectors and the 200 mm length meets the routing requirements, this pre-assembled RF cable assembly can provide a convenient solution for short-distance RF interconnection. Compact and Practical RF Cable Assembly for Electronic Equipment An RF cable assembly may look like a simple component, but connector type, cable specification, length, contact finish, and cable-end protection can all affect the installation experience. The Kinghelm KH-SMBK-SMBK-RG316-200MM RF Cable Assembly combines a straight SMB female-to-female configuration with RG316 coaxial cable in a compact 200 mm assembly. Both ends feature gold-plated SMB female connectors, while the cable uses a small-diameter RG316 coaxial cable with an OD 3.5 × 15 mm protective sleeve at the connector transition. For applications requiring RF module interconnection, internal equipment wiring, or short-distance signal connections, a standardized pre-assembled RF cable assembly can reduce on-site processing and simplify installation. With clear specifications and a ready-to-use design, the KH-SMBK-SMBK-RG316-200MM is a practical solution for compact RF interconnection applications. About Kinghelm Kinghelm(www.kinghelm.net) specializes in RF passive components, antennas, connectors, RF cable assemblies, and electronic interconnection solutions. With more than a decade of industry experience, Kinghelm serves over 20,000 customers worldwide and offers more than 8,000 SKUs for applications in communications, automotive, industrial control, IoT, and other fields.The company holds certifications including ISO 9001, ISO 14001, RoHS, and REACH, and provides both standard products and customized antenna and connector solutions, supporting customers from product development and prototyping to mass production. KH-SMBK-SMBK-RG316-200MMView Product Details

The Kinghelm KH-SMBK-SMBK-RG1.37-100MM is a finished SMB RF cable assembly, pre-assembled with SMB female connectors on both ends and a 100 mm RG1.37 coaxial cable in between. It is supplied as a ready-to-use cable assembly, eliminating the need for customers to perform connector crimping, cable cutting, or cable assembly on site. Designed for short-distance RF signal connections, this finished cable assembly combines two straight gold-plated SMB female connectors, RG1.37 black coaxial cable, and protective sleeves into one complete product. With its compact 1.37 mm cable diameter and 100 mm finished length, it is suitable for internal connections between RF modules, PCBs, communication equipment, test equipment, and other compact electronic devices. Kinghelm KH-SMBK-SMBK-RG1.37-100MM Product Image Product Specifications Brand: KinghelmModel: KH-SMBK-SMBK-RG1.37-100MMProduct Type: Finished SMB-K to SMB-K RF Cable AssemblyCable Length: 100 mmCable: RG1.37 black coaxial cableCable Outer Diameter: 1.37 mmConnector: SMB female, female contact, straight typeConnector Finish: Gold-platedRated Voltage: 300 VSleeve: OD 2.5 × 15 mmPackaging: BaggedGross Weight: Approx. 5.35 g Ready-to-Use Finished Cable Assembly Unlike loose RF connectors or bulk coaxial cable, the KH-SMBK-SMBK-RG1.37-100MM is supplied as a complete finished cable assembly. The connectors have already been assembled onto the RG1.37 coaxial cable according to the specified cable length. This finished design saves users the additional work of cable cutting, stripping, connector termination, and assembly. For equipment manufacturers, engineers, and production teams, using pre-assembled RF cable assemblies can simplify the wiring process and improve installation efficiency. The 100 mm finished length also provides a convenient solution for connecting RF interfaces located close to each other without requiring users to process the cable themselves. SMB Female-to-Female Configuration Both ends of the finished cable are equipped with straight SMB female connectors with gold-plated contacts. The two identical connectors form an SMB-K to SMB-K connection configuration. This design is suitable for connecting compatible SMB male interfaces in RF modules, circuit boards, communication equipment, and testing systems. Because the connectors are already installed, the cable can be directly used after delivery, making it convenient for equipment assembly and maintenance. Compact RG1.37 Coaxial Cable The cable assembly uses RG1.37 black coaxial cable with an outer diameter of approximately 1.37 mm. Its slim profile is particularly suitable for compact electronic equipment where internal installation space is limited. The 1.37 mm cable diameter allows the finished assembly to be routed flexibly around components and PCB layouts. Combined with the 100 mm finished length, it is well suited for short-distance internal RF connections. Suitable for Equipment Assembly and RF Applications As a ready-made RF cable assembly, the KH-SMBK-SMBK-RG1.37-100MM can be used in various applications, including: RF module-to-module connections PCB and RF module connections Internal wiring of communication equipment Wireless communication devices RF testing equipment Laboratory test setups Compact electronic equipment Short-distance RF signal connections For manufacturers purchasing RF cable assemblies in volume, a finished and standardized cable can also help simplify production processes and reduce the need for in-house cable termination. Kinghelm KH-SMBK-SMBK-RG1.37-100MM Specification Conclusion The Kinghelm KH-SMBK-SMBK-RG1.37-100MM is a compact finished SMB RF cable assembly, rather than a loose cable or individual connector. It is factory-assembled with two straight gold-plated SMB female connectors and a 100 mm RG1.37 black coaxial cable, providing a ready-to-use solution for short-distance RF connections. With its compact cable diameter, standardized 100 mm length, pre-installed SMB connectors, and lightweight construction, this finished RF cable assembly is a practical choice for electronic equipment manufacturers, RF module developers, testing applications, and other applications requiring convenient and space-efficient SMB connections. About Kinghelm Kinghelm (www.kinghelm.net) was founded by Shi-Qiang Song in Shenzhen and has been deeply engaged in the electronic components industry for many years. The company has developed a comprehensive interconnect product portfolio covering Type-C, SMA, IPEX, MCX, HDMI connectors, automotive wiring harnesses, adapter cables, pin headers, terminals, RF cables, and other interconnect products. In addition, Kinghelm offers a complete range of antenna products, including GPS antennas, Wi-Fi antennas, BeiDou antennas, embedded antennas, 4G antennas, and ceramic antennas, supported by an extensive portfolio of RF coaxial connectors and RF connector solutions. Leveraging Shenzhen's well-established electronics supply chain, Shi-Qiang Song and his team have developed and optimized a wide range of products to meet the diverse requirements of applications such as communications, automotive electronics, and the Internet of Things (IoT). From board-to-board connections in space-constrained environments, to stable signal transmission in automotive applications, and antenna solutions for various wireless terminals, Kinghelm provides practical, highly compatible product options designed to meet real-world engineering requirements. With a focus on product compatibility, connection reliability, and application-specific optimization, Kinghelm provides dependable interconnect solutions that support engineers throughout system design, wiring, assembly, testing, and debugging. KH-SMBK-SMBK-RG1.37-100MMView Product Details

With the continuous development of automotive electronics, in-vehicle communication, navigation and positioning, intelligent driving, and in-vehicle entertainment, the number of electronic devices and communication modules inside vehicles continues to increase. This has created higher requirements for RF signal transmission, wiring harness stability, reliability, and installation convenience. FAKRA connectors are widely used in automotive electronics due to their standardized interfaces, easy identification, and structural characteristics designed for automotive applications. They are commonly used in automotive antenna systems, GPS navigation, wireless communication, and in-vehicle entertainment systems. The Kinghelm KH-FAKRAZK-FAKRAZK-RG174-150MM is an automotive FAKRA female-to-female RG174 RF cable assembly featuring a blue Z-type FAKRA female connector at each end and a black RG174 coaxial cable in the middle. With a standard cable length of 150 mm and a compact overall structure, it is suitable for a variety of short-distance RF signal connection applications. Kinghelm KH-FAKRAZK-FAKRAZK-RG174-150MM Product Image Product Specifications Brand: Kinghelm Model: KH-FAKRAZK-FAKRAZK-RG174-150MM Product Type: RF Cable Assembly Application: Automotive Electronics / RF Signal Connection Connector Configuration: FAKRA Blue Z-Type Female to FAKRA Blue Z-Type Female Connector Type: FAKRA Female-to-Female Connector Housing Color: Blue Connector Structure: Z-Type Coaxial Cable: RG174 Cable Color: Black Cable Outer Diameter: Approx. 2.8 mm Cable Length: 150 mm Sleeving: Black Heat-Shrink Tubing Heat-Shrink Tubing Size: OD 3.5 × 15 mm Rated Voltage: 300 V Packaging: Bag Product Weight: Approx. 11.05 g 1. Blue Z-Type FAKRA Design for Automotive RF Connections Both ends of this RF cable assembly are equipped with blue Z-type FAKRA female connectors. The connectors feature a female contact configuration and blue housings, providing clear visual identification during wiring harness assembly, equipment installation, and maintenance. FAKRA connectors are commonly used in automotive electronic systems and are suitable for applications such as automotive antennas, navigation and positioning systems, wireless communication, satellite positioning, and in-vehicle entertainment. Automotive interiors typically have limited installation space and complex electronic module layouts. A properly designed connector structure can help optimize cable routing and simplify installation. The Z-type connector design is suitable for applications where a specific connection direction is required. When the equipment interface and cable routing are positioned at an angle, the Z-type structure can help reduce excessive bending near the connector and contribute to a more organized wiring layout. The blue FAKRA housing also makes it easier to distinguish different interfaces within automotive wiring harnesses, which can help improve efficiency during assembly, inspection, and maintenance. 2. RG174 Coaxial Cable for Compact and Flexible Wiring The coaxial cable is an essential part of an RF cable assembly and is responsible for RF signal transmission. This product uses RG174 coaxial cable, featuring a black outer jacket and an outer diameter of approximately 2.8 mm. RG174 is a commonly used small-diameter coaxial cable specification. Its relatively compact size and flexibility make it suitable for electronic equipment and wiring harness applications where installation space is limited. Automotive interiors contain numerous control modules, communication modules, and antenna interfaces. RF cable assemblies therefore need to be routed according to the equipment layout and available installation space. The relatively small outer diameter of RG174 helps reduce the space occupied by the cable assembly while facilitating bending, routing, and installation. By combining FAKRA connectors with RG174 coaxial cable, this product provides a ready-to-use RF cable assembly for short-distance RF signal connections between compatible devices. 3. 150 mm Standard Cable Length for Short-Distance Connections This RF cable assembly features a standard cable length of 150 mm, making it suitable for compact, short-distance connection applications. During electronic equipment assembly, the distance between different modules can vary. An excessively long cable may create unnecessary cable slack and make wiring organization more difficult, while a cable that is too short may not reach the required connection point. The 150 mm cable length can meet the connection requirements of certain compact electronic devices and modules while facilitating standardized procurement and assembly. For applications such as R&D testing, equipment assembly, automotive wiring harness processing, and mass production, a standardized RF cable assembly can reduce the need for additional cable cutting, connector crimping, and assembly operations. 4. Black Heat-Shrink Tubing for a More Integrated Cable Assembly The connection area between the FAKRA connector and the coaxial cable is covered with black heat-shrink tubing, with a specification of OD 3.5 × 15 mm. The heat-shrink tubing covers the cable termination area and helps provide a cleaner and more organized overall appearance. During electronic equipment and automotive wiring harness assembly, the rear section of the connector generally requires appropriate protection and cable organization. The heat-shrink tubing helps create a more integrated transition between the connector and cable, contributing to the overall structure of the RF cable assembly. The black tubing matches the black RG174 coaxial cable, providing a consistent appearance suitable for automotive wiring harnesses and other black cable systems. 5. 300 V Rated Voltage and Clearly Defined Specifications According to the product specifications, this FAKRA RF cable assembly has a rated voltage of 300 V. For actual applications, the RF cable assembly should be selected according to the equipment's operating voltage, operating frequency, impedance requirements, and installation environment. RF cable assembly selection should not be based solely on connector type and cable length. It is also important to confirm the equipment interface specification, RF frequency range, impedance requirements, installation direction, and available space. Before bulk procurement or deployment, users are advised to verify the connector model and cable specifications according to the requirements of the actual application. 6. Applications in Automotive Electronics, Navigation, and Communication Featuring FAKRA connectors, this product is particularly suitable for automotive electronics and in-vehicle RF connection applications. Depending on the equipment interface specifications, potential applications include: Automotive antenna systems GPS navigation systems Navigation and positioning equipment In-vehicle communication modules Wireless communication equipment In-vehicle entertainment systems Automotive electronic modules Intelligent vehicle electronics RF connection and testing equipment As vehicles become increasingly intelligent and connected, the demand for communication and data transmission within vehicles continues to grow. RF cable assemblies serve as an important link between antennas, communication modules, and electronic equipment. The Kinghelm KH-FAKRAZK-FAKRAZK-RG174-150MM combines standard FAKRA connectors with RG174 coaxial cable in a compact 150 mm configuration, making it suitable for short-distance RF connections. It can also be used in electronic product R&D, testing, prototyping, and wiring harness processing, provided that the connector and electrical specifications meet the requirements of the application. Kinghelm KH-FAKRAZK-FAKRAZK-RG174-150MM Specification 7. Compact RF Cable Assembly for Easy Wiring Harness Installation The product adopts a simple and compact FAKRA connector + RG174 coaxial cable + heat-shrink tubing construction, providing a ready-to-use RF cable assembly with clearly defined specifications. Both ends use the same type of blue Z-type FAKRA female connector, allowing connection to compatible FAKRA interfaces. The 150 mm cable length helps minimize excess cable, while the approximately 2.8 mm outer diameter of the RG174 coaxial cable makes the assembly suitable for space-constrained installation environments. For electronic equipment manufacturers, automotive electronics companies, and wiring harness manufacturers, using a standardized finished RF cable assembly can reduce processes such as cable cutting, stripping, crimping, and connector assembly. This can help simplify assembly operations, improve production efficiency, and facilitate standardized production management. Conclusion Overall, the Kinghelm KH-FAKRAZK-FAKRAZK-RG174-150MM Automotive FAKRA Female-to-Female RG174 RF Cable Assembly is a compact, ready-to-use RF connection solution designed for short-distance RF signal transmission. The assembly features blue Z-type FAKRA female connectors at both ends, a black RG174 coaxial cable, a standard 150 mm cable length, and black heat-shrink tubing at the cable termination area. With its FAKRA connector configuration, compact RG174 coaxial cable, and standardized 150 mm length, this RF cable assembly is well suited for automotive electronics, in-vehicle communication, navigation and positioning, automotive antenna systems, wireless communication modules, and other related electronic equipment. Depending on the actual interface and electrical requirements, it may also be used for electronic equipment R&D, testing, prototyping, and wiring harness processing. When selecting an RF cable assembly, users are advised to consider the equipment interface type, operating frequency, impedance, operating voltage, connection direction, cable length, and installation environment to ensure compatibility with the specific application. About Kinghelm Kinghelm(www.kinghelm.net) has been deeply engaged in the RF and interconnect industry for many years. Its product portfolio covers a wide range of connectors and interconnect components, including Type-C, SMA, IPEX, MCX, HDMI, as well as automotive wiring harnesses, adapter cables, pin headers, terminals, RF cables, and other interconnect products. Kinghelm offers a comprehensive antenna portfolio, including GPS antennas, Wi-Fi antennas, BeiDou antennas, internal antennas, 4G antennas, ceramic antennas, and various other antenna products. Combined with RF coaxial connectors and RF connectors, these products provide complete signal transmission solutions for different applications. Kinghelm also offers a wide range of electronic components, including sensors, millimeter-wave products, tactile switches, detection switches, and band switches. Leveraging Shenzhen's mature electronics supply chain, Kinghelm supports diverse application areas such as in-vehicle communication, navigation and positioning, intelligent driving, industrial connectivity, and IoT equipment. The company provides reliable product support for engineers in component selection, bulk procurement, and customized wiring harness processing, helping deliver stable and efficient signal connectivity for a wide range of electronic applications. KH-FAKRAZK-FAKRAZK-RG174-150MMView Product Details

In automotive electronics, in-vehicle communications, antenna feeder systems, positioning and navigation, cameras, T-Box systems, in-vehicle infotainment connectivity, and RF testing, RF cable assemblies may appear to be only a small component of a wiring harness system. However, they directly affect signal transmission stability, interference resistance, and installation efficiency. The KH-FAKRADK-FAKRADK-RG174-350MM from Kinghelm is an RF cable assembly featuring FAKRA purple D-code female connectors on both ends, using RG174 coaxial cable with a total cable length of 350 mm. It is suitable for compact installation spaces and applications requiring short-distance RF interconnection, extension, or signal routing. It is a common connection solution for automotive RF and wireless communication wiring systems. Kinghelm KH-FAKRADK-FAKRADK-RG174-350MM Product Image 1. Product Overview and Basic Positioning This product belongs to the RF cable assembly category. The brand is Kinghelm, and the product model is KH-FAKRADK-FAKRADK-RG174-350MM. According to the product specifications, it is a FAKRA purple D-code female-to-female RF cable assembly using RG174 coaxial cable, with a cable length of 350 mm. Both ends are equipped with FAKRA female connectors with female center contacts. The connector housings are purple or purplish-red and use D-code mechanical keying. The product is packaged in bags, with a gross weight of approximately 12.95 g. For customers requiring volume purchasing, maintenance replacement, or sample testing, clearly defined specifications such as these make product selection and identification more convenient. 2. Structure and Appearance Design Both ends of this cable assembly use FAKRA female connectors with female center contacts. The connector housings are purple or purplish-red and feature D-code keying. FAKRA connectors are widely used in automotive RF applications. One of their key advantages is their color coding and mechanical keying system. Different codes correspond to different colors and mechanical key positions, helping to prevent incorrect connections. D-code connectors are commonly identified by a purple or purplish-red housing. Therefore, users can quickly identify the connector coding type through the color of the housing. The female connector design allows the cable assembly to mate with corresponding FAKRA male connectors, making it suitable for connecting, extending, or routing RF signals between two male-ended interfaces. The cable itself uses RG174 coaxial cable with a black outer jacket and an outer diameter of approximately 2.8 mm. RG174 coaxial cable is flexible, compact in diameter, and easy to bend and route. It is particularly suitable for installation in confined spaces inside vehicles, test fixtures, or internal equipment modules. Compared with thicker coaxial cables, RG174 offers greater flexibility and weight advantages. Black heat-shrink tubing is also used at the cable-to-connector transition areas. The tubing specification is OD: 3.5 × 15 mm. The heat-shrink tubing provides insulation, dust protection, resistance to light pulling forces, and additional bend protection, improving the mechanical reliability of the connection area. 3. Key Specification Analysis According to the available specifications, the cable length is 350 mm, and the rated voltage is 300 V. A 350 mm cable is considered a relatively short RF connection length and is suitable for interconnecting devices located close to each other. Typical examples include connections between vehicle head units and antenna modules, RF modules and interface panels, or test equipment and fixtures. A shorter cable length can help reduce signal attenuation while making cable management easier in compact installation spaces. The 300 V rated voltage indicates that the insulation capability of the cable assembly can meet the general requirements of low-voltage electronic equipment and automotive RF systems. RG174 coaxial cable typically has a characteristic impedance of 50 ohms, which is a common impedance standard in RF systems. In actual applications, electrical performance parameters such as insertion loss, voltage standing wave ratio (VSWR), and operating frequency range may be affected by connector manufacturing quality, cable material, assembly accuracy, and the operating environment. Therefore, for high-frequency or high-reliability applications, users are recommended to refer to the actual product datasheet or factory test data. The gross weight of the product is approximately 12.95 g, and it is supplied in bag packaging, making it lightweight and convenient for storage, distribution, and individual use. 4. FAKRA D-Code Keying and the Importance of Mis-Mating Prevention The coding system of FAKRA connectors is one of the major reasons they are widely used in automotive applications. Through different colors and mechanical keying structures, FAKRA connectors can be used to distinguish different RF signal systems, such as: Radio antennas GPS and navigation systems Cellular communications Automotive cameras Wi-Fi Bluetooth Other automotive RF communication systems The purple or purplish-red D-code housing not only provides easy visual identification but also helps reduce the risk of incorrect connections during installation. For maintenance personnel and installers, once the equipment-side connector is confirmed to use D-code keying, a corresponding FAKRA cable assembly can be selected to improve installation efficiency and reduce connection errors. FAKRA connectors typically use a locking mechanism. Users can usually feel a clear locking engagement after the connector is properly inserted. When disconnecting the connector, the release latch should be pressed before removal. Excessive pulling on the cable should be avoided. Although the female connector and female center-contact design is suitable for repeated mating cycles, users should still keep the connector interfaces clean and avoid contamination by dust, oil, moisture, or metal particles. 5. Advantages and Application Limits of RG174 Coaxial Cable RG174 is a commonly used flexible coaxial cable featuring a small diameter, low weight, and a relatively small bending radius, making it suitable for high-density cable routing. Its black outer jacket provides a certain degree of resistance to wear and contamination. With an outer diameter of approximately 2.8 mm, it can also be routed through narrow openings, cable channels, and compact installation spaces. The relatively short 350 mm cable length makes this product practical for applications such as automotive antennas, RF modules, test fixtures, and laboratory module interconnections. However, because RG174 has a relatively small cable diameter, its high-frequency attenuation is generally higher than that of thicker and lower-loss coaxial cables. Therefore, when the application involves very high operating frequencies, long transmission distances, or strict signal-loss requirements, users should evaluate whether a lower-loss coaxial cable is more suitable. For short-distance connections such as 350 mm, RG174 can still provide practical and stable performance in many automotive RF, navigation, radio, camera, and general wireless communication applications. 6. Heat-Shrink Tubing and Connection Reliability The cable assembly uses black heat-shrink tubing at the connector tail, with a specification of OD: 3.5 × 15 mm. After heating, the tubing tightly covers the cable-to-connector transition area. This helps reduce cable damage caused by repeated bending or pulling and can also provide a certain degree of dust protection, moisture resistance, and electrical insulation. For automotive environments involving vibration and movement, this protective design can help improve the service life and mechanical reliability of the cable assembly. During installation, excessive heating of the heat-shrink tubing should be avoided to prevent damage to the cable jacket or internal connector structure. 7. Typical Application Scenarios The Kinghelm KH-FAKRADK-FAKRADK-RG174-350MM can be used in a variety of RF interconnection applications, including: Automotive radio antenna extensions GPS/BeiDou antenna connections T-Box communication modules Vehicle infotainment head units Automotive camera signal connections V2X communication modules Wireless communication equipment RF test fixtures Laboratory module interconnections Because both ends use FAKRA female connectors, the cable assembly is typically used to connect two FAKRA male interfaces or to provide short-distance signal extension and interconnection. If the equipment interface itself uses a female connector, a suitable male adapter or an alternative connector configuration may be required. 8. Selection and Installation Recommendations When selecting this product, users should confirm the following key points: Whether the interface requires a FAKRA female connector with a female center contact. Whether the required mechanical coding is D-code with a purple or purplish-red housing. Whether RG174 coaxial cable is suitable for the application. Whether a cable length of 350 mm meets the installation requirements. Whether the 300 V rated voltage meets the system requirements. Whether the installation space is suitable for the approximately 2.8 mm cable diameter and the 3.5 × 15 mm heat-shrink protection area. During installation, sharp bends should be avoided and an appropriate bending radius should be maintained. When mating or disconnecting the connectors, users should align the mechanical keying correctly and operate the locking mechanism properly. Forced rotation, excessive side loading, or pulling directly on the cable should be avoided. Kinghelm KH-FAKRADK-FAKRADK-RG174-350MM Datasheet 9. Brand and Packaging Information Kinghelm is well known in the fields of RF connectors, antennas, and cable assemblies. The product model is KH-FAKRADK-FAKRADK-RG174-350MM. It is supplied in bag packaging and has a gross weight of approximately 12.95 g. Clear product model identification and numbering facilitate purchasing, inventory management, and maintenance replacement. For customers requiring stable supply and consistent product specifications, selecting standardized product models can help reduce selection errors and installation risks. Conclusion Overall, the Kinghelm KH-FAKRADK-FAKRADK-RG174-350MM is a compact and flexible FAKRA purple D-code female-to-female RF cable assembly with clearly defined specifications. It uses RG174 coaxial cable with a black outer jacket, an outer diameter of approximately 2.8 mm, and a cable length of 350 mm. The rated voltage is 300 V, and both ends feature FAKRA female connectors with female center contacts. The connector transition areas are protected by black heat-shrink tubing with a specification of OD: 3.5 × 15 mm. The product is supplied in bag packaging and has a gross weight of approximately 12.95 g. It is suitable for short-distance RF interconnection applications involving automotive electronics, antennas, navigation systems, cameras, communication modules, and RF testing and measurement equipment. With correct product selection, proper installation, and appropriate maintenance, this cable assembly can provide stable and reliable performance for RF signal transmission. About Kinghelm Kinghelm (www.kinghelm.net), a national high-tech enterprise with more than a decade of experience in the RF and interconnection industry, specializes in the design, manufacturing, sales, and technical services of wireless signal transmission and reception products, electronic signal connectors, and interconnection systems. Its comprehensive product portfolio covers Type-C, SMA, IPEX, MCX, HDMI connectors, automotive wiring harnesses, adapter cables, RF connectors, electronic components, millimeter-wave sensors, and a complete range of tactile switches, detection switches, slide switches, push-button switches, micro switches, and multifunction switches. With more than 8,000 SKUs, Kinghelm's products are developed and manufactured in accordance with standards and certification requirements such as ISO 9001, ISO 14001, RoHS, and REACH. Supported by the research and development expertise of technical teams associated with Tsinghua University and the University of Electronic Science and Technology of China, Kinghelm products are widely used in communications, automotive electronics, industrial control, and IoT applications. Combining high reliability, broad compatibility, and strong cost performance, Kinghelm provides both standardized mass-production products and end-to-end customized solutions, making it a trusted provider of RF and interconnection solutions for customers across multiple industries. KH-FAKRADK-FAKRADK-RG174-350MMView Product Details

In automotive electronics and wireless communication systems, a reliable RF cable assembly plays an important role in connecting different devices and supporting stable signal transmission. Whether it is used in in-vehicle navigation, antenna systems, communication modules, or other RF applications, selecting the right connectors and cable configuration can make installation easier and help create a cleaner, more organized wiring layout. The Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM is an RF Cable Assembly featuring a FAKRA Blue C-type female connector on both ends. It uses RG174 coaxial cable and has a total cable length of 300 mm. With its compact design and matching connector configuration, it is suitable for short-distance RF connection applications in automotive electronics and other related equipment. For applications that require two compatible FAKRA interfaces to be connected over a short distance, this RF Cable Assembly provides a straightforward and practical connection solution. Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM Product Image 1. FAKRA Connector Design for Clear and Convenient Connections FAKRA connectors are widely used in automotive electronics and can be found in vehicle navigation systems, GPS equipment, communication modules, antennas, and other RF-related applications. One of the advantages of the FAKRA connector system is its use of different colors and mechanical coding options. These features can help users identify connectors more easily during installation and make wiring and assembly more convenient, especially in systems where multiple RF connections are installed close to one another. The KH-FAKRACK-FAKRACK-RG174-300MM RF Cable Assembly features FAKRA Blue C-type female connectors on both ends. Since both connectors share the same interface configuration, the assembly is suitable for applications where two matching FAKRA connection points need to be linked together. This female-to-female configuration can be useful for short-distance equipment connections or interface extension applications. Users can arrange the RF Cable Assembly according to the location of the connected devices, helping create a cleaner and more organized wiring layout. In automotive electronic systems, where multiple modules and wiring harnesses are often installed within limited space, using the correct RF Cable Assembly can simplify both installation and future maintenance. 2. Product Model and Basic Specifications The basic specifications of the Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM are listed below: Brand: KinghelmModel: KH-FAKRACK-FAKRACK-RG174-300MMProduct Type: RF Cable AssemblyConnector Type: FAKRA Blue C-type Female to FAKRA Blue C-type FemaleCable Type: RG174 RF Coaxial CableCable Length: 300 mm / 30 cmRated Voltage: 300 VPackaging: BagGross Weight: Approximately 12.15 g From its configuration, this RF Cable Assembly is designed with a clear application focus. It combines matching FAKRA Blue C-type connectors with RG174 coaxial cable and a compact 300 mm cable length, making it suitable for short-distance RF connection requirements. 3. RG174 Coaxial Cable for Flexible Installation The KH-FAKRACK-FAKRACK-RG174-300MM RF Cable Assembly uses RG174 RF coaxial cable. Coaxial cable is widely used in RF applications because of its structure and suitability for signal transmission. In automotive electronics, installation space is often limited, and multiple electronic modules and wiring harnesses may need to be arranged within the same area. For this reason, cable flexibility can be an important consideration during installation. RG174 cable is suitable for applications where a relatively compact and flexible cable is needed. It can be easier to route through limited installation spaces and can help users organize connections between nearby electronic modules. This makes the RF Cable Assembly suitable for various applications involving RF connections, such as vehicle antennas, navigation systems, communication equipment, and other electronic devices that require short-distance coaxial connections. 4. 300 mm Cable Length for Short-Distance Connections The cable length of this RF Cable Assembly is 300 mm, or 30 cm. For many electronic systems, cable length is an important part of the overall installation design. An assembly that is too long may create unnecessary excess wiring, while one that is too short may not provide enough distance between two connection points. The 300 mm length is suitable for a range of short-distance applications. It provides enough room for basic cable routing while helping avoid excessive cable slack inside the equipment. For example, when two RF modules, antenna-related components, or automotive electronic devices are located relatively close to each other, a 30 cm RF Cable Assembly can offer a simple and practical connection option. By selecting a cable length that matches the actual installation distance, users can create a cleaner and more organized internal wiring arrangement. 5. Rated Voltage of 300 V According to the product specifications, the KH-FAKRACK-FAKRACK-RG174-300MM RF Cable Assembly has a rated voltage of 300 V. Electrical specifications are one of the factors users may consider when selecting RF Cable Assemblies and other electronic connection components. Different systems may have different requirements depending on their design and operating environment. Before installation, users should confirm that the RF Cable Assembly is suitable for the electrical requirements of the intended application. During use and installation, it is also recommended to avoid excessive bending, pulling, or unnecessary mechanical stress on the cable and connectors. Proper cable routing and installation can help maintain a stable and well-organized connection. 6. Lightweight Design for Easier Handling The RF Cable Assembly is supplied in bag packaging and has a gross weight of approximately 12.15 g. Its lightweight and compact design makes it convenient for storage, transportation, and installation. For manufacturers, installers, and maintenance personnel working with electronic equipment, compact RF Cable Assemblies can be easier to handle during assembly and wiring. In automotive electronics and compact communication equipment, every component needs to fit into an organized installation layout. A lightweight RF Cable Assembly can be integrated into the system without adding unnecessary bulk. The bag packaging also supports convenient storage and general inventory management for different purchasing and application requirements. 7. Typical Application Areas With its FAKRA Blue C-type female connectors, RG174 coaxial cable, and 300 mm cable length, the Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM RF Cable Assembly can be used in a variety of RF connection applications. Typical application areas may include: Automotive electronic systems In-vehicle GPS and navigation systems Vehicle antenna connections Automotive communication modules Wireless signal transmission equipment Short-distance RF module connections FAKRA interface extension and connection applications Other electronic equipment requiring RG174 coaxial cable connections Before selecting the product, users should confirm that the connector type and mechanical coding are compatible with their equipment. It is also important to verify whether the 300 mm cable length is appropriate for the actual installation space. Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM Specification 8. Conclusion The Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM is a compact and practical RF Cable Assembly designed for short-distance RF connection applications. It features a FAKRA Blue C-type female connector on each end, combined with RG174 RF coaxial cable and a total length of 300 mm. This configuration makes the RF Cable Assembly suitable for automotive electronics and other RF-related applications where compatible FAKRA interfaces need to be connected over a relatively short distance. For users working with automotive communication systems, antenna connections, navigation equipment, and other RF modules, selecting the correct RF Cable Assembly can make installation more convenient and help maintain an organized wiring layout. Although an RF Cable Assembly is only one component within a larger electronic system, factors such as connector compatibility, cable length, cable type, and installation convenience can all affect the overall assembly process. With its matching FAKRA connector configuration, RG174 coaxial cable, compact 300 mm length, and lightweight design, the Kinghelm KH-FAKRACK-FAKRACK-RG174-300MM provides a practical connection solution for compatible short-distance RF applications. About Kinghelm In Shenzhen's electronic components supply chain, Kinghelm(www.kinghelm.net) offers a highly compatible selection for OEMs with its broad portfolio of switches and connectors. With over a decade of experience in the design, manufacturing, sales, and technical service of wireless signal transmission, electronic connectors, and interconnection systems, Kinghelm provides one-stop component solutions for consumer electronics, industrial control, and other applications. Its product range covers various switches, including tactile, push-button, micro, slide, detection, illuminated, DIP, toggle, limit, encoder, joystick, and rotary switches, as well as connectors such as headphone jacks, DC sockets, FPC connectors, USB connectors, waterproof USB connectors, and Type-C interfaces. Supported by experienced technical teams and multiple quality and environmental certifications, Kinghelm focuses on reliable product performance, structural compatibility, and efficient one-stop sourcing for customers. KH-FAKRACK-FAKRACK-RG174-300MMView Product Details

In wireless communication systems, IoT devices, smart terminals, industrial equipment, and various RF applications, the connection between the wireless module and the antenna plays an important role in overall signal transmission and communication reliability. A properly designed RF cable assembly helps provide a stable connection between an internal RF module and an external antenna while offering greater flexibility in antenna placement. The Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H is an RF cable assembly featuring a gold-plated four-leg semi-threaded SMA female connector with a groove and a 5 mm threaded length, connected to an IPEX Generation 3 connector. The cable uses RG0.81 black coaxial wire with a total length of 160 mm (16 cm). Designed for wireless communication and antenna connection applications, this RF cable assembly provides a practical solution for converting an internal IPEX Generation 3 RF interface into an external SMA antenna connection. Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H Product Image 1. Product Overview The product is manufactured under the Kinghelm brand and has the following model number: KH-IPEX3-SMAKWE5-RG0.81-B0160H It belongs to the RF cable assembly category and is designed primarily for RF signal transmission between an IPEX connector and an SMA connector. The cable assembly features an IPEX Generation 3 connector on one end and a gold-plated SMA female connector on the other end. The SMA connector adopts a four-leg, semi-threaded structure with a groove and a threaded length of 5 mm. Main Specifications Product Type: RF Cable Assembly Brand: Kinghelm Model: KH-IPEX3-SMAKWE5-RG0.81-B0160H Input/Output Interface: IPEX to SMA IPEX Generation: Generation 3 SMA Connector: Gold-plated SMA female SMA Structure: Four-leg semi-threaded type with groove Threaded Length: 5 mm Cable Type: RG0.81 black coaxial cable Cable Length: 160 mm Rated Voltage: 300 V Packaging: Bag packaging Gross Weight: Approximately 5.533333 g 2. IPEX Generation 3 to SMA Design for Flexible Antenna Connections With the continuous development of wireless communication technology, compact RF connectors are increasingly used in wireless modules and electronic devices. IPEX connectors are commonly found in compact wireless modules because of their small size and suitability for internal installation. SMA connectors, on the other hand, are widely used for external antennas, wireless communication equipment, RF systems, and other antenna-related applications. The Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H provides a convenient connection between these two interface types. It allows an internal IPEX Generation 3 RF port to be extended to an external SMA interface, making it easier to connect an external antenna. This design gives equipment designers greater flexibility when arranging antennas. The SMA connector can be mounted on an equipment enclosure or panel, allowing the antenna to be positioned according to the structural requirements of the device. For products requiring external antennas, this IPEX-to-SMA RF cable assembly provides a practical interface conversion solution. 3. Gold-Plated SMA Female Connector with Stable Mounting Structure The cable assembly uses a gold-plated SMA female connector with a four-leg semi-threaded structure. The connector also features a groove and a 5 mm threaded length. SMA connectors are widely used in RF applications due to their compact size and broad compatibility with many antenna and communication systems. They are commonly used in wireless communication products, RF equipment, antenna systems, and electronic devices requiring external RF connections. The four-leg structure is suitable for applications requiring connector mounting and fixation. The grooved connector design and 5 mm threaded section allow the product to meet corresponding panel-mounting and enclosure installation requirements. Gold plating on the connector helps provide good contact performance and corrosion resistance. This makes the connector suitable for RF applications where stable electrical contact and reliable mechanical connection are important. 4. RG0.81 Black Coaxial Cable for Compact Internal Wiring The KH-IPEX3-SMAKWE5-RG0.81-B0160H uses RG0.81 black coaxial cable for RF signal transmission. Internal space is often limited in wireless communication devices and compact electronic products. Therefore, an RF cable must not only provide the required connection between the module and antenna interface but also support efficient cable routing within the device. The relatively compact RG0.81 cable is suitable for internal RF connections in space-constrained equipment. Designers can route the cable between the wireless module and the external SMA connector according to the internal structure of the product. The black cable provides a simple and practical appearance and can be easily integrated into different electronic device designs. 5. 160 mm Cable Length for Flexible Equipment Layout Cable length is an important factor when selecting an RF cable assembly. A cable that is too short may not provide sufficient distance between the wireless module and the external connector, while an unnecessarily long cable may make internal routing more complicated. This product features a cable length of 160 mm, or 16 cm, making it suitable for a variety of compact and medium-sized electronic devices. The 160 mm length provides installation flexibility for connecting an internal IPEX Generation 3 interface to an SMA connector mounted on an external panel or equipment enclosure. This length can be suitable for applications such as wireless communication terminals, IoT devices, Wi-Fi equipment, industrial communication products, and other electronic systems requiring external antenna connections. 6. Rated Voltage of 300 V The Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H has a rated voltage of 300 V. When selecting cable assemblies for electronic equipment, users should consider not only connector compatibility and cable dimensions but also the electrical requirements of the application. The 300 V rated voltage provides a basic electrical specification for product selection. Users should still evaluate the specific operating environment and system requirements to ensure that the cable assembly is suitable for the intended application. 7. Wide Range of Applications With its IPEX Generation 3 to SMA interface configuration and 160 mm cable length, the Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H can be used in various wireless and RF applications, including: Wireless Communication Modules The cable can be used to connect wireless communication modules equipped with IPEX Generation 3 interfaces to external SMA antennas. Internet of Things Devices It is suitable for IoT devices and smart terminals that require flexible external antenna installation. Wi-Fi and Wireless Networking Equipment The RF cable assembly can be used in Wi-Fi devices and wireless networking equipment to connect internal wireless modules to external SMA antenna interfaces. Industrial Wireless Communication Equipment It can be applied in industrial communication systems, remote monitoring equipment, wireless data transmission devices, and other related applications. Smart Hardware and Electronic Terminals The product is suitable for electronic devices requiring flexible RF interface placement and external antenna connectivity. RF and Antenna Systems Where connector specifications are compatible, the cable assembly can also be used in related RF signal connection and antenna applications. 8. Important Considerations for Product Selection When selecting an IPEX-to-SMA RF cable assembly, users should first confirm the generation and type of the IPEX connector used on the wireless module. Different connector generations and specifications may have different mechanical structures and dimensions. For this product, the device-side interface should be confirmed as IPEX Generation 3 before installation. Users should also verify the SMA connector requirements, including the connector gender, mounting method, threaded length, and equipment panel thickness. The Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H uses a gold-plated four-leg semi-threaded SMA female connector with a groove and a 5 mm threaded length, so the equipment structure should be checked to ensure compatibility. In addition, the 160 mm cable length should be evaluated according to the internal layout of the device. Designers should consider routing distance and available installation space to ensure proper cable placement. 9. Packaging and Product Weight The product is supplied in bag packaging, which is suitable for storage, transportation, and batch applications. The gross weight of the product is approximately 5.533333 grams, making it a lightweight RF connection component suitable for compact electronic equipment and integrated wireless communication systems. Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H Specification Conclusion The Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H is a practical RF cable assembly designed for wireless communication and antenna connection applications. It features an IPEX Generation 3 connector, a gold-plated four-leg semi-threaded SMA female connector with a groove, and a 5 mm threaded length. The assembly uses RG0.81 black coaxial cable with a total length of 160 mm and a rated voltage of 300 V. By converting an internal IPEX Generation 3 RF interface into an external SMA connection, the cable assembly provides greater flexibility for antenna installation and equipment design. It can be used in wireless communication modules, IoT devices, Wi-Fi equipment, industrial wireless systems, smart terminals, and other electronic products requiring external antenna connections. When selecting and using the product, users are recommended to confirm IPEX Generation 3 compatibility, SMA connector requirements, installation structure, cable length, and internal routing space. With proper interface matching and installation, the Kinghelm KH-IPEX3-SMAKWE5-RG0.81-B0160H can provide a practical RF connection solution for a wide range of wireless communication applications. Anout Kinghelm Kinghelm, founded by Mr. Song Shiqiang in Shenzhen in 2007, is a National High-Tech Enterprise specializing in RF passive components, antennas, connectors, and interconnection solutions. With nearly 20 years of industry experience, Kinghelm offers thousands of products, including RF connectors, IPEX, SMA, Type-C, HDMI connectors, RF cables, automotive wiring harnesses, GPS, Wi-Fi, BeiDou, 4G, internal, and ceramic antennas. Kinghelm is certified to ISO9001, ISO14001, RoHS, and REACH standards and serves over 20,000 customers worldwide across the communications, automotive, industrial, and IoT sectors. KH-IPEX3-SMAKWE5-RG0.81-B0160HView Product Details

In wireless communication equipment, IoT terminals, smart devices, and various compact RF modules, the connection between the antenna and the mainboard is an important part of achieving reliable wireless communication. As electronic products continue to develop toward miniaturization, lightweight construction, and higher integration, the available internal space is becoming increasingly limited. As a result, higher requirements are being placed on the size, connector type, cable length, and mounting structure of RF connectors and RF cable assemblies. The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H is an IPEX-to-SMA RF Cable Assembly featuring a 4th generation IPEX connector and a gold-plated four-leg half-thread SMA female connector. It is equipped with RG1.37 black RF cable and has a total cable length of 120 mm. The product is suitable for connections between wireless modules and external antennas and can be used in Wi-Fi, Bluetooth, GNSS, IoT, and other RF communication applications. Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H Product Image Basic Product Specifications Brand: KinghelmPart Number: KH-IPEX4-SMAKWE5-RG1.37-B120HProduct Type: RF Cable AssemblyConnector Configuration: IPEX to SMAIPEX Generation: 4th GenerationSMA Connector: Gold-Plated Four-Leg Half-Thread SMA FemaleStructural Feature: Without GrooveThread Length: 5 mmCable Type: RG1.37 Black RF CableCable Length: 120 mm (12 cm)Rated Voltage: 300 VPackaging: Bag PackagingGross Weight: Approximately 4.8 g 4th Generation IPEX Connector Design for Compact Wireless Modules The KH-IPEX4-SMAKWE5-RG1.37-B120H features a 4th generation IPEX connector and is suitable for compact wireless communication modules and electronic devices with limited internal space. As smart terminals and IoT devices continue to become smaller, conventional RF connection methods with larger dimensions may occupy more space inside certain devices. Compact IPEX connectors can better meet the requirements of space-efficient electronic designs. The 4th generation IPEX connector is commonly used between wireless communication modules and RF cable assemblies. By using the cable assembly, the RF interface on the mainboard can be extended to another location, making it easier to connect an external antenna. For products that require the mainboard, wireless module, and antenna to be arranged within limited internal space, selecting the appropriate connector type and cable length is particularly important. By converting a 4th generation IPEX interface to an SMA interface, this product can meet the connection requirements between different interface types. It allows compact wireless modules inside a device to connect to compatible external antennas through a standardized SMA interface. IPEX-to-SMA Configuration for Wireless Modules and External Antennas The product features an IPEX-to-SMA connector configuration. One end connects to a compatible wireless module equipped with a 4th generation IPEX interface, while the other end is an SMA female connector that can be used with compatible external antennas or RF components. This connector configuration provides greater flexibility for antenna installation. In some devices, the wireless module is installed inside the mainboard assembly, while the antenna needs to be mounted on the device enclosure, panel, or another suitable location. With a 120 mm RF cable assembly, the connection can be routed between the mainboard and the antenna installation point. For wireless equipment manufacturers and electronics engineers, factors such as connector compatibility, available installation space, cable length, and internal device layout should be considered during product design. The KH-IPEX4-SMAKWE5-RG1.37-B120H uses a commonly required IPEX-to-SMA connection configuration and can be used in various wireless communication products requiring antenna connections. Gold-Plated Four-Leg Half-Thread SMA Female Connector One end of the product uses a gold-plated four-leg half-thread SMA female connector. The connector structure is designed to provide stable mounting for applicable installations. SMA connectors are widely used in RF communication and wireless equipment and can be used for connections between antennas, wireless modules, and other RF components. The product uses a four-leg mounting structure, which helps support the connector during installation. Its half-thread design is suitable for compatible panel-mounting applications. The connector is designed without a groove and features a thread length of 5 mm, allowing users to select the product according to the thickness of the device enclosure and the specific mounting structure. The connector uses gold plating to support reliable electrical contact and improve corrosion resistance at the connection point. For wireless communication equipment intended for long-term operation, a stable connector structure is an important consideration. RG1.37 Black RF Cable for Internal Device Routing The KH-IPEX4-SMAKWE5-RG1.37-B120H uses RG1.37 black RF cable with a total length of 120 mm, or 12 cm. For electronic devices, the length of an RF cable assembly should be selected according to the available internal space. If the cable is too short, it may not provide sufficient distance between the mainboard and the antenna mounting position. If the cable is too long, it may increase the complexity of internal cable routing. Therefore, a 120 mm cable length can provide practical installation and routing flexibility for a range of devices. RG1.37 RF cable offers flexibility suitable for routing inside relatively compact electronic products. During installation, the cable can be arranged according to the location of the mainboard, the enclosure structure, and the antenna mounting position. The black cable design provides a clean appearance and is suitable for various internal electronic device environments while also helping with cable organization and identification. 120 mm Cable Length for Flexible Installation and Layout The RF Cable Assembly has a total length of 120 mm. For the internal layout of wireless communication equipment, selecting an appropriate cable length can improve installation flexibility. For example, in some wireless communication terminals, the IPEX connector on the mainboard may be located inside the device, while the SMA connector needs to be mounted on the equipment enclosure or panel. In this case, the 120 mm RF cable assembly can provide a practical connection path between the two locations. An appropriate cable length can also support more efficient internal cable management. When selecting an RF Cable Assembly, users should consider the actual dimensions of the equipment, mainboard layout, and antenna installation location to ensure that the connector configuration, cable length, and mounting structure match the product design requirements. 300 V Rated Voltage for Various Electronic Equipment Applications The KH-IPEX4-SMAKWE5-RG1.37-B120H has a rated voltage of 300 V and can meet relevant connection requirements in compatible electronic equipment applications. The overall assembly consists of an IPEX connector, an SMA connector, and RG1.37 RF cable, providing a connection between a wireless module and an external antenna. Its lightweight construction also makes it suitable for certain devices where size and weight are important considerations. The product is supplied in bag packaging and has an approximate gross weight of 4.8 g, making it convenient for transportation, storage, and material management during manufacturing processes. Suitable for Various Wireless Communication Applications With its combination of a 4th generation IPEX connector and an SMA connector, the KH-IPEX4-SMAKWE5-RG1.37-B120H can be used in a variety of wireless communication and RF equipment applications, including: Wi-Fi wireless communication equipment Bluetooth modules and smart terminals IoT communication devices GNSS/GPS positioning devices Wireless routers and networking equipment Industrial wireless control terminals Smart home communication devices 4G/5G wireless communication modules Various external antenna connection applications Compact RF communication modules In practical applications, users should confirm the IPEX connector specification according to the interface used by the equipment and select the product based on the SMA mounting method, thread length, and required cable length. Key Product Features The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H RF Cable Assembly offers the following features: First, it uses a 4th generation IPEX connector. It is suitable for compatible compact wireless communication modules and can meet the connection requirements of space-efficient electronic devices. Second, it features an IPEX-to-SMA connector configuration. This structure provides a convenient connection between an internal wireless module and an external antenna. Third, it uses a gold-plated four-leg half-thread SMA female connector. The connector features a stable mounting structure and a 5 mm thread length. Fourth, it uses RG1.37 black RF cable. The cable offers flexibility suitable for routing inside electronic devices. Fifth, the cable length is 120 mm. This provides practical installation space between the internal mainboard and the antenna connection point. Sixth, the product features a lightweight structure. With an approximate gross weight of 4.8 g, it is suitable for various compact and lightweight electronic devices. Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H Specification Conclusion In the design and manufacturing of wireless communication equipment, an RF Cable Assembly may be a relatively small electronic component, but its connector specifications, cable length, and connector mounting structure can all affect the antenna layout and overall equipment design. The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H combines a 4th generation IPEX connector, a gold-plated four-leg half-thread SMA female connector, and RG1.37 black RF cable. It features a 120 mm cable length, a groove-free connector structure, and a 5 mm thread length. For equipment that requires a compact wireless module to be connected to an external antenna, this model can be used as a 4th generation IPEX-to-SMA RF Cable Assembly. During product selection and installation, users should confirm the wireless module interface specification, available internal space, antenna installation location, and connector mounting dimensions to ensure proper compatibility with the intended application. About Kinghelm Kinghelm specializes in electronic components, including electronic connectors, RF connectivity components, cable assemblies, switches, sockets, and related interconnection products. The company continues to develop products for communication connectivity, signal transmission, and electronic interconnection, providing a wide range of options for consumer electronics, IoT, automotive electronics, smart devices, and industrial applications. Kinghelm’s product range covers Type-C, SMA, IPEX, MCX, HDMI connectors, FPC connectors, USB connectors, and waterproof USB connectors, as well as automotive wiring harnesses, adapter cables, pin headers, terminals, and RF cables. For switching applications, Kinghelm offers detection switches, toggle switches, push button switches, tactile switches, multifunction switches, illuminated switches, DIP switches, and rocker switches. The product portfolio also includes headphone jacks and DC sockets, supporting various requirements for signal transmission, power connection, interface expansion, and control functions across different electronic devices. KH-IPEX4-SMAKWE5-RG1.37-B120HView Product Details

As wireless communication technology continues to develop, reliable RF connectivity has become an important part of modern electronic equipment. From Wi-Fi and Bluetooth devices to GNSS modules, IoT terminals, and industrial wireless systems, a high-quality RF cable assembly helps establish a stable connection between the internal RF module and the external antenna. The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H is a compact RF cable assembly designed with a 1st Generation IPEX connector on one end and a gold-plated four-leg half-thread SMA female connector on the other end. The cable uses RG0.81 black RF coaxial cable with a total length of 50 mm (5 cm), making it suitable for compact electronic devices with limited internal installation space. Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H Product Image Product Overview The KH-IPEX-SMAKWE5-RG0.81-B50H is manufactured under the Kinghelm (Kinghelm Electronics) brand and belongs to the RF cable assembly product category. The cable is designed to provide a practical connection between small RF modules equipped with a 1st Generation IPEX connector and external antennas or RF equipment using an SMA interface. Basic Product Specifications Brand: Kinghelm Model: KH-IPEX-SMAKWE5-RG0.81-B50H Product Category: RF Cable Assembly Connector Type: IPEX to SMA IPEX Generation: 1st Generation SMA Connector: Gold-plated four-leg half-thread SMA female SMA Structure: Without groove Thread Length: 5 mm Cable Type: RG0.81 black RF cable Cable Length: 50 mm / 5 cm Rated Voltage: 300V Packaging: Bag packaging Gross Weight: Approximately 4.33 g Gold-Plated Four-Leg SMA Female Connector One of the key features of the KH-IPEX-SMAKWE5-RG0.81-B50H is its gold-plated four-leg SMA female connector. The SMA connector is widely used in RF and microwave applications because of its compact size, convenient threaded connection, and suitability for many wireless communication systems. It is commonly found in antennas, wireless modules, communication equipment, testing devices, and RF systems. This product uses a four-leg mounting structure, which helps provide stable mechanical support when the connector is installed on an enclosure, panel, or other suitable structure. The connector features a half-thread design, with a 5 mm thread length, and is manufactured without a groove, making it suitable for applications requiring this specific mechanical configuration. The gold-plated contact surface is designed to provide reliable electrical contact and improved resistance to oxidation and corrosion. For electronic devices that require long-term operation, stable connector contact is an important factor in maintaining reliable RF signal transmission. 1st Generation IPEX Connector for Compact RF Modules The other end of the cable assembly uses a 1st Generation IPEX connector. IPEX connectors are widely used in compact wireless electronic devices because of their small size and lightweight structure. They are commonly used for connecting antennas to Wi-Fi modules, Bluetooth modules, GNSS receivers, IoT communication modules, and other miniature RF devices. As modern electronic products continue to become smaller and more compact, internal installation space is often limited. Small RF connectors such as IPEX provide engineers with greater flexibility when designing antenna connections inside compact devices. The KH-IPEX-SMAKWE5-RG0.81-B50H provides a convenient transition from an internal IPEX 1st Generation RF interface to an external SMA antenna interface. This configuration allows the internal RF module to connect with an external antenna through a standard threaded SMA connection. Before selecting the product, users should confirm that their wireless module uses a compatible 1st Generation IPEX connector. RG0.81 Black RF Cable for Flexible Internal Installation The KH-IPEX-SMAKWE5-RG0.81-B50H uses RG0.81 black RF coaxial cable. For compact wireless devices, cable diameter and flexibility can have a significant impact on internal layout and assembly. A smaller RF cable can help engineers route the cable more easily inside devices where installation space is limited. The RG0.81 cable used in this assembly is suitable for compact RF connection applications. It allows the cable assembly to be integrated into small electronic products while helping reduce unnecessary space consumption. The total cable length is 50 mm, or 5 cm. This relatively short length is suitable for applications where the RF module and the external SMA connector are located close to each other. A properly selected cable length can help simplify internal cable routing and reduce excess cable inside the enclosure. The 50 mm design is particularly suitable for compact wireless devices, embedded communication systems, and other applications with limited internal space. Rated Voltage of 300V The KH-IPEX-SMAKWE5-RG0.81-B50H has a rated voltage of 300V. Electrical parameters are important considerations when selecting RF cable assemblies. In addition to connector compatibility, cable type, and mechanical dimensions, users should also consider whether the electrical specifications meet the requirements of their specific equipment. The rated voltage specification provides an important reference for product selection and system design. Users should always evaluate the complete electrical environment and application requirements before installation. Lightweight and Compact Design With a gross weight of approximately 4.33 grams, the KH-IPEX-SMAKWE5-RG0.81-B50H is a lightweight RF connection solution. Lightweight and compact RF cable assemblies are especially useful for electronic products where space and weight are important considerations. Examples include portable devices, embedded systems, smart terminals, and compact IoT products. The combination of a small IPEX connector, a compact RG0.81 cable, and an SMA female connector provides a practical solution for connecting an internal RF module to an external antenna. Typical Applications The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H RF cable assembly can be used in a variety of wireless communication applications, including: Wi-Fi communication devices Bluetooth modules and terminals GNSS and GPS positioning devices IoT communication equipment Wireless routers and gateways Industrial wireless control systems Smart home devices Wireless data transmission equipment Embedded RF modules Compact communication terminals External antenna connection systems In many of these applications, the internal wireless module uses a miniature RF connector while the external antenna uses a standard SMA interface. An IPEX-to-SMA RF cable assembly provides a convenient solution for connecting these different interfaces. Important Selection Considerations When selecting the KH-IPEX-SMAKWE5-RG0.81-B50H, several factors should be confirmed. First, users should verify that their device uses a 1st Generation IPEX connector. Different connector generations may have different mechanical structures and dimensions. Second, the installation structure of the SMA connector should be checked carefully. This model features a gold-plated four-leg half-thread SMA female connector without a groove, with a 5 mm thread length. Third, users should confirm whether the 50 mm cable length is suitable for the distance between the internal RF module and the external antenna connector. Finally, the overall RF system design, antenna type, operating frequency, and mechanical installation requirements should be considered to ensure proper compatibility. Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H Specification Conclusion The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H is a compact IPEX-to-SMA RF cable assembly designed for wireless communication and antenna connection applications. Featuring a 1st Generation IPEX connector, a gold-plated four-leg half-thread SMA female connector, a 5 mm thread length, and RG0.81 black RF coaxial cable, this product provides a practical connection solution for compact electronic devices. The cable length of 50 mm (5 cm) and rated voltage of 300V make it suitable for a range of wireless communication systems and embedded electronic applications. The product can be used in Wi-Fi, Bluetooth, GNSS, GPS, IoT, industrial wireless communication, and other RF applications that require a connection between an internal miniature RF interface and an external SMA antenna. For the best application results, users should confirm connector compatibility, installation dimensions, cable length requirements, and overall RF system specifications before product selection. About Kinghelm Kinghelm is a national high-tech enterprise specializing in electronic connectivity and signal transmission, integrating R&D, manufacturing, and sales. Its product range includes Type-C, USB, HDMI, FPC, RF connectors, SMA, IPEX, MCX connectors, RF cable assemblies, switches, buttons, automotive wiring harnesses, and customized cable solutions. Kinghelm products are widely used in consumer electronics, automotive electronics, industrial automation, wireless communication, and smart devices. With comprehensive product solutions and reliable quality, Kinghelm provides one-stop electronic interconnection solutions for customers worldwide. Kinghelm — Connecting the World. KH-IPEX-SMAKWE5-RG0.81-B50HView Product Details

1. Product Overview As wireless communication equipment continues to evolve toward smaller form factors and higher levels of integration, reliable RF signal transmission has become increasingly important to overall system performance. Kinghelm's KH-IPEXA-SMAKWE5-B50H RF Cable Assembly is designed to address the interconnection requirements of compact wireless devices. The assembly combines a gold-plated four-leg semi-threaded SMA female connector with a first-generation IPEX connector and a high-quality 1.13 mm black coaxial cable, providing a compact and lightweight solution for RF interconnections. The assembly is 50 mm long and has a gross weight of only 4.4 g. It is supplied in a bag package. Despite its compact size, the KH-IPEXA-SMAKWE5-B50H reflects Kinghelm's experience in RF interconnect technology and its focus on manufacturing quality and product reliability. Key Specifications of the IPEX-to-SMA RF Cable Assembly Product Type: RF Cable Assembly Connector Configuration: 1st-generation IPEX to SMA female Cable Length: 50 mm Rated Voltage: 300 V Kinghelm KH-IPEXA-SMAKWE5-B50H Product Image 2. Design: Three Key Components The KH-IPEXA-SMAKWE5-B50H is built around three main components, each contributing to the overall reliability and electrical performance of the RF connection. Gold-Plated SMA Female Connector The SMA female connector features a gold-plated four-leg, semi-threaded design. It has a thread length of 5 mm and does not feature a groove. The four-leg soldering structure provides secure mechanical attachment, while the semi-threaded design helps simplify installation and removal while maintaining a reliable connection. The gold-plated surface provides good electrical conductivity as well as improved resistance to oxidation and corrosion, helping to extend connector service life. First-Generation IPEX Connector The first-generation IPEX connector is widely used for miniature RF interconnections and is commonly found in internal antenna interfaces for Wi-Fi modules, Bluetooth modules, GPS/BeiDou positioning terminals, and other compact wireless devices. The IPEX connector uses gold-plated contacts to provide stable electrical contact with the corresponding board-mounted connector and help maintain a reliable low-resistance connection. 1.13 mm Coaxial Cable The 1.13 mm coaxial cable provides the RF signal path between the two connectors. With an outer diameter of only 1.13 mm, the cable is thin and flexible, making it well suited to applications where internal installation space is limited. The black outer jacket provides resistance to wear and tensile stress, supporting the durability requirements of various equipment applications. The 50 mm cable length is suitable for short-distance interconnections while helping avoid unnecessary cable length, routing redundancy, and additional signal attenuation. 3. Electrical Performance: Key Specifications The performance of an RF Cable Assembly ultimately depends on its electrical characteristics. The KH-IPEXA-SMAKWE5-B50H offers several specifications designed to meet the requirements of compact RF applications. The assembly has a DC rated voltage of 300 V (10 ms), making it suitable for a wide range of RF front-end circuits within the specified operating conditions. It can be used in applications involving Wi-Fi modules, Bluetooth modules, 4G/5G communication units, and other wireless communication equipment. The maximum conductor resistance is 3.0 Ω. A low conductor resistance helps minimize electrical losses along the connection path and supports efficient RF signal transmission. The minimum insulation resistance is 5.0 MΩ. High insulation resistance helps reduce leakage between the signal conductor and surrounding conductive structures, contributing to stable and reliable electrical performance. The RG1.13 coaxial cable and the SMA and IPEX connectors form a 50 Ω characteristic-impedance system covering a frequency range from DC to 6 GHz. This makes the assembly suitable for a variety of wireless applications, including 2.4 GHz Bluetooth, 5 GHz Wi-Fi, and certain sub-6 GHz 5G applications. 4. Applications: From Consumer Electronics to Industrial IoT The compact design of the KH-IPEXA-SMAKWE5-B50H makes it suitable for a variety of wireless communication and RF applications. Wi-Fi and Bluetooth Modules Wi-Fi and Bluetooth modules are among the most common applications for IPEX connectors. The RF Cable Assembly can be used to connect wireless modules to antennas in devices such as home routers, smart speakers, industrial wireless network equipment, and other compact electronic products. Drones and Remote-Control Systems Drones and remote-control systems place particular emphasis on weight, size, and connection reliability. With a gross weight of only 4.4 g and a compact 50 mm length, the assembly is suitable for internal antenna connections in drones and other lightweight wireless equipment, helping minimize additional weight while providing a reliable RF connection. Smart Home and IoT Gateway Devices Smart home products and IoT gateways often have limited internal installation space. The small diameter and flexibility of the 1.13 mm coaxial cable allow engineers greater freedom when routing RF connections inside compact enclosures and around PCBs, supporting more space-efficient product designs. GPS and BeiDou Positioning Terminals GPS and BeiDou positioning terminals require reliable RF signal transmission between the antenna and receiver. The combination of gold-plated contacts and coaxial cable provides a stable connection path for transmitting RF signals between the antenna and receiving circuitry. The assembly can also be used in industrial IoT terminals, compact RF communication equipment, vehicle-mounted antenna systems, and other wireless communication applications. 5. Handling and Installation Instructions Proper installation and handling are important for maintaining the electrical and mechanical performance of an RF Cable Assembly. Avoid excessive bending, pulling, or compression of the cable, particularly against sharp edges. Although the 1.13 mm coaxial cable is flexible, excessive bending may damage the internal conductor or shielding structure and may affect the cable's characteristic impedance and shielding performance. When connecting the SMA connector, make sure the threaded connection is properly secured. Do not apply excessive tightening force, as this may damage the threads or deform the connector. The IPEX connector should preferably be inserted and removed vertically. Avoid applying excessive lateral force, which may deform the terminal or damage the solder joint. Before mating the connector, make sure the interface is clean and free of foreign matter that could affect electrical contact. Always operate the assembly within its specified rated voltage. Operation beyond the rated voltage should be avoided to prevent electrical damage and potential safety hazards. Kinghelm KH-IPEXA-SMAKWE5-B50H Datasheet 6. Kinghelm: Experience and Commitment to Quality The KH-IPEXA-SMAKWE5-B50H is manufactured by Kinghelm, a National High-Tech Enterprise with extensive experience in BeiDou/GPS antennas and RF interconnect products. Over more than a decade of development, the company has accumulated multiple BeiDou-related invention patents and software copyrights. Kinghelm is also a member of organizations including the China Satellite Navigation Association, the China Information Industry Trade Association, and the Guangdong Connector Association. Kinghelm's product portfolio covers BeiDou/GPS antennas, RF components, miniature adapters, broadband data connectors, connectors and terminals, automotive wiring harnesses, industrial connectors, and customized components, among other product categories. Its RF product range is designed for high-frequency and high-speed signal transmission, with products featuring low loss, effective shielding, and reliable electrical performance. A broad selection of connector types—including SMA, MCX, MMCX, FAKRA, and IPEX—as well as various cable lengths gives customers flexibility when selecting components for different applications. 7. Conclusion The Kinghelm KH-IPEXA-SMAKWE5-B50H RF Cable Assembly combines a gold-plated SMA female connector, a first-generation IPEX connector, and a 1.13 mm coaxial cable to provide a compact solution for RF interconnections. With a maximum conductor resistance of 3.0 Ω, a minimum insulation resistance of 5.0 MΩ, a 50 Ω characteristic impedance, and a specified frequency range of DC to 6 GHz, the assembly is designed to meet the interconnection requirements of a range of compact wireless communication devices. For engineers developing space-constrained wireless products, the KH-IPEXA-SMAKWE5-B50H provides a practical connection between RF modules and antennas. Its compact dimensions, lightweight construction, and flexible cable design make it suitable for applications where installation space, cable routing, and connection reliability are important considerations. About Kinghelm Kinghelm(www.kinghelm.net) is committed to developing and manufacturing precision electronic components, connectors, control switches, and RF communication accessories. Its products are widely used in smart terminals, IoT, millimeter-wave communications, industrial control and testing, and other application areas. Kinghelm's key product models include KH-IPEX-K501-29, KH-6X6X5H-STM, KH-6X6X5H-Z2J, KH-6X6X6H-STM, KH-6X6X8H-ZJ, KH-VH-PT3.96, and KH-SMA-P-8029, covering major product categories such as RF connectors, tactile switches, and wire-to-board connectors. Its communication product portfolio includes RF cable assemblies, general-purpose antennas, GPS antennas, Wi-Fi antennas, and RF coaxial connectors, providing solutions for high-frequency signal transmission, positioning, and wireless connectivity. The company's control-switch portfolio includes detection switches, slide switches, push-button switches, micro switches, multifunction switches, illuminated switches, DIP switches, toggle switches, and other product types for equipment control and circuit detection applications. Kinghelm also supplies sensors, electronic components, earphone jacks, DC sockets, FPC connectors, USB connectors, and other precision interconnect products. With strict quality-control standards, established manufacturing processes, and extensive industry experience, Kinghelm continues to improve product performance and manufacturing quality. Supported by a comprehensive product portfolio and reliable product quality, the company provides customers with integrated electronic component and interconnect solutions and continues to strengthen its position in the market. KH-IPEXA-SMAKWE5-B50HView Product Details

With the rapid adoption of IoT devices, vehicle-mounted terminals, and industrial DTUs, the demand for reliable signal reception continues to increase. Devices need to receive BeiDou/GPS satellite positioning signals reliably while maintaining stable 4G cellular data transmission. A single-function antenna can no longer fully meet the integrated design requirements of modern devices. The Kinghelm KH-G4-4616-1M Black Mushroom Antenna is a GNSS + 4G dual-function combo antenna that integrates a GNSS positioning antenna and a 4G communication antenna into a single compact disc-shaped mushroom housing. It combines convenient installation with stable signal reception and is widely compatible with outdoor, vehicle-mounted, equipment enclosure-mounted, and other IoT terminal devices, providing equipment manufacturers with an integrated RF signal reception solution. Kinghelm KH-G4-4616-1M Product Image Product Overview The Kinghelm KH-G4-4616-1M is a disc-shaped mushroom-style combo antenna featuring an integrated black plastic housing. It incorporates both a BeiDou/GPS positioning antenna and a 4G communication antenna, enabling simultaneous reception of positioning and cellular communication signals. The antenna is supplied with a 46 × 16 mm red 3M adhesive pad, together with screw and nut accessories. It supports two installation methods: adhesive mounting and panel mounting through a drilled hole with a screw and nut. This makes it suitable for a variety of applications, including industrial equipment, vehicle housings, and IoT devices. The antenna uses RG1.78 brown coaxial cable and is terminated with an SMAJ connector, allowing direct connection to RF ports on mainboards, DTUs, positioning modules, and other devices. The complete antenna weighs only 58.6 g gross, and its lightweight design adds minimal load to the equipment housing. The product is packaged in individual bags, making it convenient for bulk storage, project procurement, and shipment. It is an ideal external antenna accessory for industrial IoT, vehicle monitoring, and intelligent security terminals. Key Electrical Characteristics The KH-G4-4616-1M mushroom antenna supports dual-band operation and covers two major signal ranges: 4G cellular communication: 700–960 MHz and 1710–2690 MHz GNSS positioning: 1575 ± 3 MHz This frequency coverage makes the antenna compatible with mainstream satellite navigation systems such as GPS and BeiDou. In terms of electrical performance, the antenna features: Return Loss: ≤ -6.0 dB Maximum VSWR: 3.5:1 Peak Gain: up to 2.0 dB Stable VSWR performance helps reduce RF reflection losses and minimize wasted signal power. With a peak gain of 2.0 dB, the antenna can improve signal reception in relatively weak-signal environments. Even in challenging scenarios such as urban areas with building obstructions or enclosed vehicle housings, it can continue to receive satellite positioning and cellular network signals. The RG1.78 coaxial cable offers good flexibility and bending resistance. It is suitable for routing inside equipment and along device housings, reducing the risk of cable cracking or conductor damage during installation and helping maintain long-term RF transmission stability. The SMAJ standard RF connector offers broad compatibility. Most 4G DTUs, BeiDou positioning modules, and vehicle-mounted terminals equipped with SMA interfaces can be connected directly, reducing the need for additional adapters and lowering component selection and integration costs. Core Product Advantages 1. Integrated Two-in-One Design Saves Equipment Space The 4G communication antenna and GNSS positioning antenna are integrated into a single mushroom-shaped housing. Equipment manufacturers do not need to reserve two separate antenna openings on the enclosure, which can simplify mechanical design, reduce tooling and mold development costs, and help minimize the overall size of the terminal. This design is particularly suitable for compact IoT terminals where installation space is limited. 2. Dual Installation Methods for Flexible Application The product includes a red 3M adhesive pad as well as screw and nut mounting accessories, providing two installation options. For temporary testing and rapid installation, the antenna can be attached using the adhesive pad. For long-term industrial or vehicle-mounted applications, through-hole mounting with a nut provides a more secure mechanical connection, helping prevent loosening under vibration and vehicle movement. This design combines installation convenience with mechanical reliability. 3. Compact and Lightweight Structure for Easy Integration With a gross weight of only 58.6 g, the antenna has minimal impact on the overall weight of the equipment. The black plastic mushroom-style housing provides a compact and robust structure that can withstand minor impacts and offers basic protection against dust in outdoor applications. Its neat disc-shaped appearance does not protrude excessively from the equipment surface, helping reduce the risk of accidental impact and damage. 4. Standardized Connector and Cable for Easier Integration The SMAJ connector is a commonly used RF interface, while the compact RG1.78 coaxial cable provides flexible routing options. During product development, engineers can generally connect the antenna directly to compatible RF interfaces without designing additional adapter cables. This simplifies assembly, lowers integration costs, and helps shorten the product development cycle. The antenna is particularly suitable for high-volume IoT and industrial projects. 5. Kinghelm Quality Control and Stable Supply Kinghelm specializes in the R&D and manufacturing of RF connectors, antennas, and related interconnect products. The KH-G4-4616-1M mushroom antenna undergoes RF performance sampling inspections before shipment. Its individual-bag packaging is suitable for bulk inventory management and project delivery, while Kinghelm's production capabilities support stable supply for large-scale IoT and vehicle-mounted applications. Kinghelm KH-G4-4616-1M Specification Sheet Typical Applications Vehicle-Mounted IoT Terminals Applications include ride-hailing positioning terminals, GPS monitoring systems for freight vehicles, and vehicle-mounted video recorders. The antenna can simultaneously provide vehicle positioning and 4G network connectivity for transmitting vehicle status, video, and other data. Industrial IoT DTUs Suitable for outdoor remote data acquisition gateways, water-resource monitoring systems, power monitoring terminals, and other industrial devices requiring both positioning and wireless data transmission in remote environments. Intelligent Security Devices Applications include outdoor security cameras and intelligent access-control terminals, enabling device location reporting together with 4G wireless data transmission. Smart Warehousing and Asset Tracking Suitable for logistics asset tracking devices, container monitoring terminals, and other applications requiring remote asset positioning and real-time status reporting. Construction and Agricultural Machinery Suitable for excavators, agricultural machinery, and other heavy equipment to provide equipment positioning and remote transmission of operating-condition data. Installation and Usage Precautions Install the antenna in an open, unobstructed location. Avoid installing it near large metal objects or under extensive metal shielding. Metal enclosures can significantly weaken GNSS and 4G signals, reducing positioning accuracy and network stability. Control the tightening force when using through-hole mounting. Excessive tightening may damage or crack the plastic antenna housing. Before applying the 3M adhesive pad, clean the mounting surface and make sure it is dry and free of oil, dust, and other contaminants to ensure reliable adhesion. Avoid sharp bending, excessive compression, or pulling of the RG1.78 cable. Improper cable handling may damage the internal conductor and cause RF performance degradation. Connect the SMAJ connector carefully. Align the connector threads before tightening and screw it in smoothly. Do not force or cross-thread the connector, as this may damage the center pin and affect RF connection performance. The antenna housing is made of plastic and is not intended for long-term immersion in water. For high-humidity or demanding outdoor applications, additional enclosure or environmental protection measures are recommended. Product Summary The Kinghelm KH-G4-4616-1M Black GNSS + 4G Combo Mushroom Antenna integrates 4G cellular communication and GNSS satellite positioning into a single compact antenna, addressing the two major wireless requirements of modern IoT terminals within limited equipment space. With 2.0 dB peak gain, coverage of mainstream 4G frequency bands and the 1575 MHz GNSS band, an SMAJ standard connector, and a flexible RG1.78 coaxial cable, the antenna supports both adhesive mounting and screw-and-nut mounting. It offers a practical balance of RF performance, cost efficiency, installation flexibility, and system integration. Whether used in vehicle monitoring, industrial DTUs, asset tracking, or outdoor intelligent terminals, the KH-G4-4616-1M can serve as a reliable external RF antenna solution. As a domestic RF component manufacturer, Kinghelm provides comprehensive control over the entire process, from antenna structural design to electrical performance testing. The company is committed to providing one-stop antenna selection and supporting solutions for customers in the IoT industry, helping wireless terminal products move efficiently from development to mass production. About Kinghelm Kinghelm, led by Song Shiqiang, has been deeply engaged in the RF and connector industry, with a product portfolio covering Type-C, SMA, IPEX, MCX, HDMI connectors, automotive wiring harnesses, adapter cables, pin headers, terminals, RF cables, antennas, GPS antennas, RF coaxial connectors, Wi-Fi antennas, BeiDou antennas, internal antennas, 4G antennas, ceramic antennas, and other RF connector products. Popular models include KH-IPEX-K501-29, KH-SMA-K513-G, KH-TYPE-C-16P, KH-SMA-KE-Z, and KH-SMA-KWE17-G. Kinghelm can provide complete connector and antenna solutions for IoT, vehicle communication, satellite positioning, and other wireless communication projects. Kinghelm Official Website: www.kinghelm.net KH-G4-4616-1MView Product Details

With the rapid development of the modern electronics industry, precision connectors, as core components for circuit interconnection in electronic equipment, play a critical role in ensuring reliable signal transmission and power conduction. As electronic products continue to evolve toward miniaturization, integration, and intelligence, the market has placed increasingly higher demands on connector dimensional accuracy, stability, compatibility, and durability. Kinghelm has been deeply engaged in the connector industry, developing products tailored to the manufacturing needs of industrial and consumer electronic equipment. The KH-2FH-2X23P-H4.3-SMT surface-mount female header connector is one such product. Featuring a compact structural design, high-quality materials, and rigorous production and inspection processes, this connector has become an ideal choice for wiring and interconnection in small- and medium-sized electronic equipment. It is widely applicable to a variety of industrial and commercial electronic applications. Kinghelm KH-2FH-2X23P-H4.3-SMT Product Image 1. Precise Product Specifications for High-Density Assembly The KH-2FH-2X23P-H4.3-SMT female header connector features standardized specifications and is fully compatible with mainstream surface-mount manufacturing processes, making it suitable for automated mass production. The connector adopts a 2.0 mm pitch design and features 2 rows of 23 positions, providing a total of 46 contacts. Its compact dual-row configuration effectively saves PCB mounting space and meets the current trend toward lightweight and miniaturized electronic devices. Product Specifications Product Category: Female Header Pin Configuration: 2 × 23P Pitch: 2.0 mm Row Spacing: 2.0 mm Contact Hole Type: Square Hole Mounting Style: Vertical Surface Mount Number of Rows: 2 Total Positions: 46P Rated Current: 1.5 A Contact Insertion Direction: Top Entry Plastic Height: 4.3 mm Contact Material: Brass Contact Plating: Gold Operating Temperature: -40°C to +105°C In terms of structural design, the connector also features a 2.0 mm row spacing and square contact holes. Compared with round-hole designs, square holes provide more precise mating with header pins, helping to improve mating reliability and contact stability. The top-entry design supports vertical PCB stacking and modular configurations. With a plastic height of only 4.3 mm, the connector maintains a balanced and compact profile, making it well suited for applications where installation height is limited. 2. Excellent Electrical Performance for Reliable Equipment Operation Electrical performance is one of the most important criteria for evaluating connector quality and is essential to the safe and stable operation of electronic equipment. The KH-2FH-2X23P-H4.3-SMT female header connector undergoes professional testing and calibration to ensure balanced and reliable electrical performance for conventional consumer and industrial low-voltage circuits. The connector supports a rated current of up to 1.5 A, providing stable current-carrying capability for power supply and signal transmission in general electronic components and control circuit boards. In terms of insulation and conductivity, its insulation resistance is at least 1000 MΩ. The high insulation resistance helps prevent leakage and unwanted current paths, reducing the risk of short circuits and electrical interference and improving overall circuit safety. Its contact resistance is controlled at a maximum of 20 mΩ. Low contact resistance minimizes energy loss during current transmission and helps reduce heat generation, ensuring efficient and reliable power and signal transmission. The dielectric withstand voltage reaches AC 500 V, enabling the connector to withstand short-term voltage fluctuations and helping protect the circuit from damage caused by unstable voltage conditions. 3. Wide Environmental Adaptability for Diverse Applications To accommodate different operating environments and conditions, the KH-2FH-2X23P-H4.3-SMT female header connector is designed with a wide operating temperature range of -40°C to +105°C. Whether used in outdoor industrial control equipment exposed to low temperatures or in enclosed electronic systems operating at elevated temperatures, the connector is designed to maintain stable mechanical structure and electrical performance. Its wide temperature range helps reduce the risk of material aging, poor contact, and insulation failure caused by temperature changes. The product uses high-quality insulating plastic and high-elasticity conductive terminals, combined with advanced surface-treatment processes. The terminals offer good resistance to oxidation and corrosion, helping the connector withstand conditions such as humidity and light dust and contributing to a longer service life. Before shipment, each product undergoes rigorous testing, including insulation testing, dielectric withstand testing, and mating/unmating testing. Its robust structure helps prevent loosening, while stable contact performance helps reduce the risk of contact failure or signal interruption during long-term operation, thereby lowering maintenance requirements. 4. High-Quality Contact Material and Gold-Plating Technology Contact material and plating technology directly affect a connector's conductivity and service life. The KH-2FH-2X23P-H4.3-SMT female header connector uses high-quality brass contacts, providing good electrical conductivity and mechanical strength. The contacts feature Gold Flash plating, which offers excellent resistance to oxidation and corrosion. The gold-plated surface helps maintain stable, low-impedance electrical contact between the header pins and female contacts. This plating design not only improves signal transmission reliability but also enhances mating durability, allowing the connector to maintain stable contact performance in applications involving frequent mating and unmating. 5. Tube Packaging and SMT Technology for Efficient Manufacturing In terms of packaging and physical characteristics, the KH-2FH-2X23P-H4.3-SMT is supplied in tube packaging. Tube packaging effectively protects the connector terminals during transportation and storage, helping prevent pin deformation, oxidation, impact damage, and other potential issues and ensuring consistent product quality. The gross weight of each connector is only approximately 2.5 grams. Its lightweight construction minimizes additional load on the PCB and makes it suitable for the assembly of thin and lightweight electronic devices, balancing structural stability with installation flexibility. The product uses an SMD surface-mount package and is compatible with SMT assembly processes. No manual pin insertion and soldering are required; the connector can be directly placed and mounted using automated equipment, significantly improving manufacturing efficiency and making it suitable for high-volume electronics production lines. The vertical surface-mount configuration allows the female header to be mounted closely to the PCB surface while supporting high-density layouts and automated production requirements. Kinghelm KH-2FH-2X23P-H4.3-SMT Datasheet 6. Broad Applications Across Various Electronic Devices With its compact structure, stable performance, and convenient surface-mount installation, the KH-2FH-2X23P-H4.3-SMT female header connector is suitable for a wide range of applications. It is designed for high-density PCB interconnection and can be widely used for signal transmission and power connections in electronic equipment. In industrial applications, the connector can be used for industrial control mainboards, automated sensing equipment, and compact industrial control modules, supporting reliable circuit interconnection in demanding operating environments. In commercial and consumer applications, it can be used in smart-home PCBs, communication electronics, office automation equipment, and digital control modules. The product is also suitable for consumer electronics, communication equipment, automotive electronics, medical electronics, and other fields. Whether used in compact portable devices or larger industrial control boards, the KH-2FH-2X23P-H4.3-SMT is designed to provide stable and reliable electrical connections while helping minimize signal interference and connection failures. Conclusion The Kinghelm KH-2FH-2X23P-H4.3-SMT female header connector combines a fine 2.0 mm pitch, compact dual-row 46-position configuration, 1.5 A rated current, a wide operating temperature range of -40°C to +105°C, and gold-plated brass contacts to deliver reliable electrical performance and environmental adaptability in a compact form factor. Its SMD vertical-mount configuration and tube packaging further support efficient automated mass production. The product demonstrates Kinghelm's accumulated expertise and manufacturing capabilities in the connector industry and provides a reliable precision interconnection solution for modern high-density electronic designs. About Kinghelm According to Shi Qiang Song, Kinghelm(www.kinghelm.com.cn) will soon open a "Kinghelm" specialty store in Huaqiangbei, Shenzhen. The product range will cover Type-C, SMA, IPEX, MCX, HDMI connectors, automotive wiring harnesses, adapter cables, pin headers, terminals, RF cables, Kinghelm antennas, GPS antennas, RF coaxial connectors, Wi-Fi antennas, BeiDou antennas, and other related products.Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2FH-2X23P-H4.3-SMTView Product Details

In today’s compact electronic hardware, saving PCB space while securing stable power and signal links poses a key challenge for hardware designers. Introducing the Kinghelm KH-2508-02AWB — a horizontal SMD header of XA series, engineered for space-limited assemblies and optimized for automated SMT manufacturing. Kinghelm KH-2508-02AWB Product Image Outstanding Specifications for Peak Performance The Kinghelm KH-2508-02AWB connector is built with practical parameters to deliver dependable performance: - Product Series: XA Series- Pitch: 2.5 mm - Position: 1×2P single-row- Mounting Type: SMD horizontal surface-mount- Voltage Rating: 250V - Current Rating: Up to 3 Amps- Contact Material: Brass with tin-plated finish- Housing Material: PA6T engineering plastic - Flammability Rating: UL94V-0- Operating Temperature: -25℃ ~ +85℃ Advantages That Set Kinghelm Apart The KH-2508-02AWB wire-to-board header brings multiple core strengths well-suited for modern miniaturized electronics: Space-Saving Low-Profile Design The horizontal SMD layout greatly reduces vertical height above PCB, making it ideal for slim-form-factor devices where internal clearance is at a premium. SMT-Friendly Production Compatibility Supporting tape-and-reel feeding and reflow soldering processes, this header fits standard high-speed SMT assembly lines. It eliminates manual insertion work and helps manufacturers raise throughput for both prototype and mass-production orders. Vibration-Resistant Connection Performance Neatly-arranged SMD solder feet create uniform stress distribution after soldering, lowering risks of cold solder joints and solder-joint cracking under mechanical vibration. Secure locking with matching cable housings prevents accidental harness disconnection during equipment operation. Stable Electrical Characteristics Tin-plated brass contacts suppress oxidation and maintain low contact resistance for consistent power supply and signal transmission. PA6T housing with UL94V-0 flame rating provides enhanced internal equipment safety protection. Wide Environmental Adaptability With an operating temperature spanning -25℃ to +85℃, the connector maintains stable working status under temperature swings, fitting consumer-grade as well as light-industrial working conditions. Cost-Effectiveness Built upon proven XA-series architecture, KH-2508-02AWB offers reliable performance at competitive cost, a practical pick for cost-sensitive compact hardware projects. Kinghelm KH-2508-02AWB Specification Diverse Applications for Every Environment The KH-2508-02AWB wire-to-board header fits a broad range of real-world scenarios: - Consumer Electronics: Implement board-to-harness interconnection for simple internal power loops inside slim electronic gadgets. - LED Lighting & Sensor Modules: Act as board-end wiring components to realize power input for lighting and sensing units. - Smart-Home Appliances: Complete short-range board-to-wire connection within small-size household smart devices. - Compact Industrial Modules: Serve as reliable power-signal interconnect for miniature control assemblies. Conclusion: Choose Kinghelm for Reliable Interconnection When space-constrained PCB layout requires stable 2-position board-to-wire interconnection, the Kinghelm KH-2508-02AWB wire-to-board header stands out as an outstanding option. Featuring low-profile horizontal SMD construction, mature XA-series specifications and full SMT-line compatibility, this component addresses the interconnect demands of various miniaturized electronic products. Boost your compact-device connectivity performance with Kinghelm — where proven design meets cost-effective reliability! Invest in interconnect components you can count on throughout your product lifecycle. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2508-02AWBView Product Details

In the field of electronic components, even the smallest component can play a critical role in determining overall product performance. As one of the most basic and widely used electronic components for human-machine interaction, tactile switches are extensively used in a wide range of electronic devices, including household appliances, automotive electronics, industrial control systems, digital products, and more. The KH-4.5X4.5X12H-TJ tactile switch, developed by Kinghelm, is a high-performance product that combines high reliability, compact design, and excellent tactile feedback. Kinghelm KH-4.5X4.5X12H-TJ Product Image 1. Product Overview and Key Specifications The KH-4.5X4.5X12H-TJ belongs to the tactile switch series of Kinghelm and is classified under the tactile switch product category. The product features a Single Pole Single Throw (SPST) circuit configuration, a round button, and a through-hole mounting design with PC terminals. Its dimensions are 4.5 mm in length, 4.5 mm in width, and 12 mm in height. The switch does not include a bracket or built-in LED, and the button/cap is available in classic black. The product is packaged in bags of 1,000 pieces per bag, with a gross weight of only 0.2253 g per unit. Product Category: Tactile Switch Circuit Configuration: Single Pole Single Throw (SPST) Button Shape: Round Mounting Type: Through-Hole Switch Length: 4.5 mm Switch Width: 4.5 mm Switch Height: 12 mm Bracket: Without Bracket Button/Cap Color: Black Illumination: None Terminal Type: PC Terminals In terms of electrical performance, the switch is rated at 50 mA and 12 V DC. Its compact 4.5 mm × 4.5 mm footprint, combined with a 12 mm height, makes it particularly suitable for applications where PCB space is limited while still providing sufficient operating height for convenient finger actuation. 2. Technical Features and Product Advantages The key advantages of the KH-4.5X4.5X12H-TJ tactile switch can be summarized in three main areas: 1. Highly Reliable Circuit Configuration Although the SPST circuit configuration is simple, it provides excellent reliability in control circuits. This configuration helps ensure accurate and stable switching operation while minimizing contact resistance and contributing to a long mechanical service life. These characteristics are especially important for equipment that requires frequent button operation. 2. Convenient Through-Hole Mounting The through-hole mounting design with PC terminals provides a convenient and efficient installation method suitable for a variety of applications. The PC terminals can be securely soldered to the PCB, making the switch particularly suitable for rapid assembly and high-volume production. This can help reduce both installation time and manufacturing costs. 3. Durable and Attractive Design The black round button offers a clean, modern appearance while providing good wear resistance and aging resistance. With a height of 12 mm, the switch provides a comfortable operating feel and clear tactile feedback. For applications such as industrial control panels and human-machine interfaces that require frequent operation, clear tactile feedback can help reduce the risk of accidental operation. 3. Wide Range of Applications The KH-4.5X4.5X12H-TJ tactile switch can be used in a wide range of applications, including but not limited to the following: Household Appliances: Control panels for air conditioners, televisions, audio equipment, white goods, and other home appliances Automotive Electronics: In-vehicle navigation systems, multimedia systems, power window controls, and other automotive applications Industrial Control: Industrial control panels, human-machine interfaces (HMIs), measuring instruments, and other control equipment Digital Products: MP3/MP4 players, mobile phones, tablets, remote controls, and other portable electronic devices Communication Equipment: Base station equipment, communication terminals, and related devices Medical and Security Equipment: Operating panels for medical devices, security control equipment, and other applications 4. Kinghelm — Connecting the World Shenzhen Kinghelm Electronics Co., Ltd. was established in 2007. It is a National High-Tech Enterprise and a provider of hardware R&D, manufacturing, sales, and system solutions for BeiDou satellite navigation and IoT terminal applications. The company specializes in microwave and RF technologies and operates under the development philosophy of "Kinghelm, Connecting the World." Kinghelm offers a comprehensive range of products. In addition to tactile switches, its product portfolio includes antenna products such as BeiDou/GPS antennas, Wi-Fi antennas, 4G antennas, internal antennas, and ceramic antennas. Its connector portfolio includes Type-C connectors, HDMI connectors, SMA connectors, IPEX connectors, MCX connectors, as well as various RF coaxial and RF connectors. Its interconnect product range also includes pin headers, terminals, automotive wiring harnesses, adapter cables, and RF cables. These electronic components are widely used in new energy vehicles, the Internet of Things (IoT), smart terminals, communication equipment, and many other fields. The Kinghelm brand has obtained multiple BeiDou-related invention patents and software copyrights and is a member of organizations including the China Satellite Navigation Association, China Information Industry Trade Association, and Guangdong Connector Association. 5. Quality Assurance and Cost Advantages While maintaining high product quality, the KH-4.5X4.5X12H-TJ tactile switch also offers a highly competitive price advantage. According to market quotations, its tiered pricing ranges from approximately RMB 0.2509 per piece for orders starting from 10+ units to RMB 0.1287 per piece for orders of 10,000+ units, offering excellent cost performance. The product is available from stock in sufficient quantities to meet the procurement requirements of customers with different order volumes. Kinghelm KH-4.5X4.5X12H-TJ Datasheet 6. Usage Precautions To ensure normal operation and extend the service life of the KH-4.5X4.5X12H-TJ tactile switch, Kinghelm recommends observing the following precautions: Carefully read the product specifications and instructions before installation to ensure proper installation and operation. Avoid using the switch in high-temperature, high-humidity, or corrosive environments. Avoid excessive or improper operation, as this may affect the mechanical service life and electrical performance of the switch. Do not operate the switch beyond its rated voltage or contact current. Conclusion The KH-4.5X4.5X12H-TJ is a tactile switch developed by Kinghelm that combines high reliability, an attractive and durable design, convenient installation, and broad application compatibility. Featuring an SPST circuit configuration and through-hole mounting, the switch has a compact 4.5 mm × 4.5 mm footprint and a 12 mm height, complemented by a black round button design. It provides reliable and convenient switching performance across a wide range of applications, including household appliances, automotive electronics, industrial control systems, digital products, communication equipment, medical devices, and security equipment. Whether for high-volume procurement or R&D component selection, the Kinghelm KH-4.5X4.5X12H-TJ is a reliable and cost-effective tactile switch solution. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-4.5X4.5X12H-TJView Product Details

KH-2501GW-12A-Z is a 2.5 mm pitch through-hole straight-mount 12-pin header of the XH series developed by Kinghelm. It is designed for low-to-medium power supply and conventional signal transmission scenarios. Founded in 2007, Kinghelm is a national-level high-tech enterprise with BeiDou-related invention patents and multiple software copyrights. It is a member of the China Satellite Navigation Association, China Chamber of Commerce for Information Industry and Guangdong Connector Association. Its product portfolio covers BeiDou-GPS antennas, RF connectors, precision connectors, USB-C, HDMI, pin and socket headers and more. Wire-to-board connectors constitute a key segment of its interconnection product line. Supported by mature manufacturing processes and strict quality control, Kinghelm products are widely adopted in consumer electronics, smart home, automotive electronics and industrial control sectors. Kinghelm KH-2501GW-12A-Z Product Image Core Specifications Electrical Parameters Product Series: XH Series Pitch: 2.5 mm Number of Positions: 12P single-row Mounting Type: Through-hole straight-mount Rated Voltage: 250 V Rated Current: 3 A Contact Terminal Material: Brass, tin-plated Housing Material: PA66 engineering plastic Flame Retardant Rating: UL94V-0 Operating Temperature: -25 ℃ ~ +85 ℃ Rated at 250 V and 3 A, this component meets most low-to-medium-power power supply loops and ordinary signal transmission loops inside equipment. Tin-plated brass terminals reduce contact resistance to ensure stable current and signal transmission. The PA66 housing with UL94V-0 flame-retardant rating improves the fire-safety margin of end-products. Its wide operating temperature range from -25 ℃ to +85 ℃ guarantees stable wire-to-board connection under high- and low-temperature working conditions. Featuring a single-row straight-mount structure compatible with matching XH-series wires, it supports both wave soldering and manual soldering. Built-in anti-misinsertion lugs effectively prevent reverse or incorrect insertion during assembly and lower production defect rates. As a widely-accepted industry standard 2.5 mm pitch, supporting materials are readily available. The PA66 housing resists aging and stress cracking to avoid brittleness and damage over long-term service. Supplied in bags and requiring storage at 10 ℃-30 ℃ with relative humidity ≤70% RH, the product supports flexible order quantities for both R&D sampling and mass production to deliver a highly-adaptable supply-chain solution. Its anti-reverse-insertion lugs eliminate assembly errors and reduce commissioning failures of finished devices. Tin-plated brass terminals offer excellent conductivity and oxidation resistance to mitigate poor contact and signal interruption risks. Soldered through PCB holes, the through-hole pins deliver superior vibration and pull-out resistance compared with SMT counterparts, making it suitable for internal wiring under vibration and pulling stress. In terms of appearance and mechanical structure, KH-2501GW-12A-Z adopts a single-row straight-mount body with PA66 flame-retardant housing for a compact and practical construction. Physical anti-misinsertion features prevent assembly mistakes. Through-hole soldered pins achieve robust connections and avoid contact anomalies caused by wire pulling or equipment vibration. As a high-quality wire-to-board header, KH-2501GW-12A-Z delivers reliable overall performance. Its stable electrical performance adapts to ordinary-signal and low-to-medium-power supply applications. It provides dependable interconnection for consumer electronics, smart-home hardware and small-scale industrial-control equipment, maintaining steady connection even under drastic temperature swings and vibrating environments. KH-2501GW-12A-Z serves a broad range of applications. Within consumer electronics, it connects internal power harnesses for LED light modules, home-appliance main-control boards and audio devices. For smart-home systems, it is used for internal module wiring of smart control panels, thermostats and robot vacuum cleaners. It can also be deployed for signal and power loops in small industrial-control terminals, instruments and partial on-board auxiliary equipment. Kinghelm KH-2501GW-12A-Z Specification Drawing Kinghelm wire-to-board header KH-2501GW-12A-Z stands out as a preferred interconnection component for numerous hardware projects thanks to stable interconnection performance, user-friendly assembly and outstanding weather resistance. For consumer-electronics manufacturers, smart-home producers and industrial-control equipment developers, selecting KH-2501GW-12A-Z means choosing consistent connection quality. With continuous innovation of electronic devices, KH-2501GW-12A-Z will bring greater value to more hardware designs. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-12A-ZView Product Details

In today’s rapidly evolving world of increasingly compact and intelligent electronic devices, tactile switches serve as one of the core components for human-machine interaction. The selection of a tactile switch directly affects both the user experience and the long-term reliability of a product. The Kinghelm KH-4.5X4.5X10H-B3J tactile switch stands out as an ideal choice for many space-constrained applications thanks to its precision dimensions, stable electrical performance, and robust mechanical construction. This article provides a comprehensive analysis of the product from the perspectives of technical specifications, design features, application scenarios, and usage recommendations. Kinghelm KH-4.5X4.5X10H-B3J Product Image 1. Product Overview The KH-4.5X4.5X10H-B3J is a through-hole tactile switch featuring an ultra-compact 4.5 mm × 4.5 mm footprint and a 10 mm switch height. It is a typical compact, high-profile tactile switch designed to provide a clear operating feel while maintaining a small PCB footprint. The product is supplied in bags, with a gross weight of only 0.1731 g per unit. While maintaining adequate structural strength, the switch achieves a lightweight design, making it particularly suitable for weight-sensitive applications such as handheld devices and wearable electronics. Its round black button and right-angle PC terminals with a supporting bracket provide both comfortable operation and enhanced mechanical stability after PCB installation. 2. Detailed Technical Specifications The key electrical and mechanical specifications of the KH-4.5X4.5X10H-B3J tactile switch are as follows: Circuit configuration: Single Pole Single Throw (SPST), providing simple ON/OFF control. The switch is momentary rather than latching: it conducts when pressed and opens when released. Contact rating: 50 mA DC Rated voltage: 12 V DC Contact resistance: ≤100 mΩ (initial value), ensuring low signal transmission loss. Insulation resistance: ≥100 MΩ at 500 V DC, providing reliable electrical isolation. Dielectric withstand voltage: 100 V AC, 50 Hz for 1 minute, with no breakdown or flashover. Operating force: 160 ± 30 gf or 260 ± 50 gf, with two options available to meet different tactile requirements. Travel: 0.15 ± 0.05 mm, providing short and crisp actuation feedback. Mechanical life: ≥50,000 cycles, ensuring reliable performance during long-term use. Button shape: Round, providing a suitable contact area for fingertip operation. Button color: Black, featuring a matte surface that helps resist fingerprints and wear. Terminal type: PC terminals, suitable for wave soldering or manual soldering. Supporting bracket: Yes, providing additional mechanical support. Mounting style: Right-angle (90-degree) terminals, suitable for side-actuated applications or layouts along the edge of a PCB. Operating temperature: -25°C to +85°C, suitable for a wide range of operating environments. These specifications indicate that the switch can provide reliable performance in a variety of conventional consumer electronics and industrial applications. 3. Design Highlights and Structural Advantages 1. SPST Circuit Configuration for Simple and Reliable Operation The switch adopts a conventional metal spring contact structure, in which an internal stainless-steel spring is deformed under pressure to establish electrical contact. This simple construction helps reduce potential failure points while providing excellent spring-back characteristics. As a result, the switch can maintain stable contact resistance and actuation travel even after tens of thousands of operating cycles. 2. Round Button for an Enhanced Operating Experience The black round button not only provides a clean and simple appearance but also offers an ergonomic operating experience. Its curved surface helps guide the user’s finger naturally during operation, reducing the possibility of accidental activation while providing clear tactile feedback. A slight "click" sensation during pressing allows the operator to clearly determine whether the switch has been successfully actuated. 3. Supporting Bracket and Right-Angle Terminals for Enhanced Stability The KH-4.5X4.5X10H-B3J is equipped with an integrated metal supporting bracket. After soldering, the bracket and PCB form a secure mechanical connection, helping resist pin fatigue or breakage caused by repeated pressing or vibration. The right-angle mounting configuration is particularly suitable for side-actuated applications, such as buttons located on the side of electronic devices or thin products where vertical space is limited. It can also facilitate automated through-hole assembly processes. 4. Compact Dimensions for High-Density PCB Layouts With a footprint of only 4.5 mm × 4.5 mm, the switch offers a highly compact form factor compared with many conventional tactile switches. It can be easily placed on densely populated PCBs, leaving valuable space for other functional modules. The 10 mm height provides sufficient accessibility for operation without excessively increasing the overall product thickness, achieving a balance between tactile usability and compact product design. 5. Multiple Operating-Force Options for Different Applications Two operating-force options are available: 160 gf and 260 gf. The lighter 160 gf option is suitable for applications requiring relatively gentle actuation, such as remote controls and earbuds, while the 260 gf option is more appropriate for industrial equipment or automotive control buttons where resistance to accidental activation is desirable. Designers can therefore select the appropriate operating force according to the requirements of the target application. 4. Application Fields and Typical Use Cases Thanks to the characteristics described above, the KH-4.5X4.5X10H-B3J can be widely used in the following fields: Home Appliances The switch can be used as a mode-selection or confirmation button in products such as rice cookers, microwave ovens, and air-conditioner control panels. Its long mechanical life and clear tactile feedback can enhance the everyday user experience. Consumer Electronics It can be applied to pairing buttons on Bluetooth earbud charging cases, side buttons on smartwatches, and function buttons on VR controllers, meeting the requirements for compact size and low weight. Digital Products Typical applications include power buttons and menu-navigation controls for digital cameras, portable speakers, and other compact digital devices. Automotive Electronics Potential applications include multifunction buttons on steering wheels and auxiliary control buttons on center consoles, such as defogging or trunk-release controls. Its operating temperature range and mechanical construction make it suitable for a variety of automotive-related applications; however, automotive-grade qualification should be verified separately for applications requiring formal automotive certification. Industrial Controls The switch can be used for parameter-setting buttons on instruments and meters, as well as start/stop controls on test equipment. Its reliable actuation and tactile feedback help ensure accurate operation even in demanding working environments. Communication Equipment Potential applications include WPS buttons on wireless routers and push-to-talk (PTT) controls on two-way radios, where stable signal triggering is required during frequent operation. Typical Application Circuit In a typical button-input circuit, one terminal of the switch is connected to GND, while the other is connected to an MCU GPIO pin with a pull-up resistor. The MCU detects the change in logic level when the button is pressed or released and thereby identifies the button state. Kinghelm KH-4.5X4.5X10H-B3J Datasheet 5. Usage Precautions and Recommendations To ensure stable long-term operation, the following points should be considered during design, assembly, and use: Electrical Limits Do not exceed the specified 12 V / 50 mA rating. Operating beyond the rated limits may cause contact erosion, welding, or other forms of contact failure. Soldering Conditions For wave soldering, a recommended temperature of 260°C ± 5°C is specified, with a soldering time of no more than 5 seconds. For manual soldering, a fine-tip soldering iron is recommended. The temperature should be controlled at 350°C or below, and the soldering time for each terminal should not exceed 3 seconds. Excessive heat may damage the internal spring-contact mechanism. Storage Conditions The switch should preferably be stored in a dry environment at -10°C to +40°C, with a relative humidity of ≤80%, to help prevent oxidation. After opening the package, the switches should be used as soon as practical to minimize the risk of moisture affecting terminal solderability. Mechanical Protection Avoid applying excessive lateral force to the side of the button during installation, as this may deform the internal spring mechanism. After final assembly, make sure that the external keycap is properly aligned with the switch button. Off-center or eccentric actuation may place excessive stress on the switch and shorten its service life. Cleaning and Environmental Protection After PCB soldering, flux residue may be cleaned as necessary. However, care should be taken to prevent cleaning agents from penetrating into the switch body, as this may result in contact failure or unstable electrical performance. For equipment operating in dusty environments, additional dust-protection measures around the switch may be considered. Conclusion The Kinghelm KH-4.5X4.5X10H-B3J tactile switch combines an extremely compact 4.5 mm × 4.5 mm footprint, a practical 10 mm height, a robust right-angle through-hole design with a supporting bracket, and reliable 50 mA / 12 V electrical performance, providing an effective button solution that balances compactness and reliability. Its multiple operating-force options, clear tactile feedback, and mechanical life of at least 50,000 cycles make it suitable for a wide range of applications, including home appliances, consumer electronics, automotive-related electronics, communication equipment, and industrial controls. For designers who need to implement reliable human-machine interaction within a limited amount of PCB or mechanical space, the Kinghelm KH-4.5X4.5X10H-B3J is certainly a component worth considering. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-4.5X4.5X10H-B3JView Product Details

In electronic hardware design, dependable interconnection between circuit boards and internal wire harnesses is critical to overall equipment performance. Selecting a qualified wire-to-board header greatly improves power delivery and signal integrity for end-products. Introducing the Kinghelm KH-2501GW-10A-Z, a through-hole header of XH series, engineered for broad-range consumer electronics, LED modules and compact industrial equipment applications. Kinghelm KH-2501GW-10A-Z Product Image Outstanding Specifications for Peak Performance The Kinghelm KH-2501GW-10A-Z header is built with proven parameters to guarantee steady operation: - Product Series: XH Series - Pitch: 2.5 mm - Position: 10-position single-row - Mounting Type: Through-hole vertical - Voltage Rating: 250V - Current Rating: Up to 3 Amps - Contact Material: Brass with tin-plated finish - Housing Material: PA66 engineering plastic - Flammability Rating: UL94V-0 - Operating Temperature: -25℃ ~ +85℃ Advantages That Set Kinghelm Apart The KH-2501GW-10A-Z wire-to-board header delivers multiple core advantages suitable for diverse working conditions: Reliable Mechanical Strength Through-hole pins penetrate PCB substrates and form solid soldered joints, effectively lowering risks of loose pins or cold solder joints under vibration. Secure latching with matching XH-series cable housings prevents accidental disconnection during device operation. Stable Electrical Performance Tin-plated brass contacts maintain low contact resistance for consistent power and signal transmission. The PA66 flame-retardant housing enhances internal equipment safety, while wide-range temperature tolerance ensures stable output amid temperature fluctuations. Great Process Compatibility Fully compatible with conventional wave-soldering workflows. No special modification to existing production lines is required, helping manufacturers control assembly costs and boost throughput for both prototype and mass-production orders. Broad Compatibility & Sourcing Convenience Based on the well-established XH 2.5 mm standard, this header enjoys abundant supporting accessories on the market. Matching cable housings and wiring components are easy to source, shortening product development cycles for hardware engineers. Durability for Long-Term Service Optimized contact spring structure preserves steady contact performance after repeated mating cycles. It resists common stresses including minor vibration and ambient temperature change for extended service life. Cost-Effectiveness Without sacrificing reliability, Kinghelm offers this mature-design component at competitive cost, making it ideal for cost-sensitive consumer and industrial projects. Kinghelm KH-2501GW-10A-Z Specification Diverse Applications for Every Environment The KH-2501GW-10A-Z wire-to-board header fits numerous practical scenarios: - Consumer Electronics: Establish harness interconnection between mainboards and different functional modules for power and signal transfer. - LED Lighting & Sensor Modules: Serve as board-end wiring components for module internal connection. - Compact Industrial Control Equipment: Realize wire-to-board harness lead-out and safeguard stable system operation. - Portable Electronic Devices: Handle internal power-signal interconnection inside space-constrained hardware assemblies. Conclusion: Choose Kinghelm for Reliable Interconnection When stable board-to-wire connection is required for your hardware project, the Kinghelm KH-2501GW-10A-Z wire-to-board header stands out as a trusted option. Featuring robust through-hole construction, compliant electrical ratings, full accessory compatibility and proven real-world performance, this XH-series header meets the demands of consumer-grade as well as light-industrial hardware development. Boost your equipment connection performance with Kinghelm — where proven design meets cost-effective reliability! Invest in interconnect components you can count on throughout your product lifecycle. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-10A-ZView Product Details

In electronic product design, push-button switches are among the most basic yet critical human-machine interface components. A push-button switch with stable performance and a well-designed structure can have a direct impact on the overall user experience and reliability of an electronic device. Today, we would like to introduce the KH-PB-22E60, a compact six-pin latching push-button switch from Kinghelm. Kinghelm KH-PB-22E60 Product Image 1. Product Overview The KH-PB-22E60 is a six-pin latching push-button switch measuring 5.8 × 5.8 × 13.5H mm. It features a through-hole mounting design with PC terminals and is supplied in a bag package. Each switch weighs only 0.495 g. As a non-illuminated push-button switch, it focuses on its core function of controlling circuit connection and disconnection. Product Category: Push-Button Switch Circuit Configuration: Double Pole Double Throw (DPDT) Button Shape: Rectangular Plunger Mounting Method: Through-Hole Illumination: Non-Illuminated Terminal Type: PC Terminals The KH-PB-22E60 belongs to Kinghelm's KH-PB-22E series. Other models in the same series include the KH-PB-22E65 (5.8 × 5.8 × 10.7H mm), KH-PB-22E70-WS, and KH-PB-22E75-WS. With different heights and specifications ranging from 10.7 mm to 17 mm, the series provides engineers with flexible options for different internal space requirements. 2. Brand Strength: Quality Assurance from Kinghelm The KH-PB-22E60 is manufactured by Shenzhen Kinghelm Electronics Co., Ltd. Kinghelm is a National High-Tech Enterprise with multiple invention patents and software copyrights related to BeiDou navigation. The company is also a member of the China Satellite Navigation Association, China Information Industry Trade Association, and Guangdong Connector Association. Under the "Kinghelm" brand, the company's products cover three major categories, including BeiDou/GPS antennas, RF components, miniature adapters, broadband data connectors, connectors and terminals, as well as automotive wiring harnesses, industrial connectors, and specialized customized components. Kinghelm products are widely used in high-speed railways, new energy vehicles, personal transportation devices, wireless smart terminals, the Internet of Things (IoT), smart cities, industrial equipment, medical applications, commercial aerospace, and other fields. 3. Core Technology: DPDT Configuration and Latching Mechanism One of the most important features of the KH-PB-22E60 is the combination of its Double Pole Double Throw (DPDT) circuit configuration and latching mechanism. 1. What Is DPDT? A six-pin latching switch is essentially a Double Pole Double Throw (DPDT) switch. The KH-PB-22E60 has two rows of three pins each. The center pin in each row serves as the common terminal (COM), while the two outer pins correspond to the normally open (NO) and normally closed (NC) contacts, respectively. The two rows form two completely independent Single Pole Double Throw (SPDT) switch circuits. The key advantage of a DPDT configuration is its ability to control two independent circuits simultaneously. Unlike a conventional Single Pole Single Throw (SPST) switch, which simply controls the on/off state of one circuit, a DPDT switch can switch two circuits between different connection states at the same time. This makes the KH-PB-22E60 particularly useful for applications such as direction switching, forward/reverse motor control, and redundant power switching. 2. How the Latching Mechanism Works "Latching" means that after the switch is pressed, its internal mechanical structure keeps it in the selected position even after the button is released. Pressing the button again releases the latch and changes the switch to the other state. This Push-On/Push-Off operating mechanism—press once to lock and press again to unlock—is particularly suitable for applications such as main power switches and operating-mode selection switches. 4. Wide Range of Applications With the combined advantages of a DPDT configuration and a latching mechanism, the KH-PB-22E60 can be used in a wide range of applications, including: Main Power Switches: It can be used as a main power switch for electronic equipment and combined with a DC power jack to provide convenient one-touch power control. Motor Forward/Reverse Control: The DPDT configuration is naturally suited to polarity-reversal and forward/reverse control of motors. Lighting Control and Mode Selection: It can be used in lighting control circuits or for switching between different operating modes. Industrial Controls and Test & Measurement Equipment: Applications include manual mode selection for small PLC modules, status resetting for sensor nodes, range-lock functions on multimeters, and trigger-mode selection on oscilloscopes. Smart Home and Consumer Electronics: It can be used for locking operating levels on humidifiers, switching brightness modes on small lamps, and similar applications. Automotive Electronics and DIY Projects: Its six-pin DPDT configuration is suitable for applications requiring independent control of positive and negative lines, indicator-light circuits, or dual-channel signal isolation. Examples include centralized power control for automotive equipment, DIY power boxes, and main control panels for 3D printers. 5. Design and Selection Considerations For hardware engineers selecting the KH-PB-22E60 for PCB designs, the following factors should be considered: Pin Identification:The center pin in each row is the common terminal (COM), while the two outer pins serve as the normally open (NO) and normally closed (NC) contacts. The two rows are completely independent switch circuits and are not electrically connected unless they are connected together on the PCB. Mounting Method:The KH-PB-22E60 uses through-hole mounting and PC terminals, making it suitable for through-hole PCB soldering. Compared with surface-mount components, through-hole switches offer secure mechanical mounting and a straightforward structure. They are particularly suitable for prototype development, hand soldering, small-batch production, and conventional through-hole assembly processes. Electrical Performance:As a low-voltage, low-current control switch, the KH-PB-22E60 can typically support rated voltages ranging from DC 12 V to 50 V and contact currents of up to 500 mA among products in the same series. This makes it suitable for most low-voltage control circuits. Kinghelm KH-PB-22E60 Datasheet 6. Conclusion With its compact 5.8 × 5.8 mm footprint, DPDT configuration, reliable latching mechanism, and through-hole PC terminals, the Kinghelm KH-PB-22E60 six-pin latching push-button switch provides precise control of two independent circuits within a limited space. Whether used for mode selection in industrial equipment, level selection in household appliances, or creative implementations in DIY projects, this compact push-button switch can provide a stable and reliable control solution. As a National High-Tech Enterprise, Kinghelm also provides strong technical capabilities and product quality assurance for the performance of the KH-PB-22E60. For electronic design projects requiring a compact DPDT latching push-button switch, the KH-PB-22E60 is certainly an option worth considering. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-PB-22E60View Product Details