KH-SMBK-SMBK-RG316-200MM RF Cable Assembly: SMB Straight Female-to-Female for Stable RF Signal Connection

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.

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