RF coaxial adapter cables play a crucial role in modern wireless communication systems, RF modules, and antenna setups by serving as a vital bridge for signal transmission. Depending on application requirements and connector types, these adapter cables come in various forms—such as SMA to IPEX, SMA to MCX, IPEX to IPEX, and MMCX to IPEX—each precisely engineered for frequency response, electrical performance, connector structure, and installation methods.

Kinghelm KH-IPEXA-SMAKWE-B080H Product Image

SMA connectors are commonly used threaded miniature RF connectors compatible with a wide frequency range, while IPEX (also known as U.FL) is a compact plug often used in space-constrained applications like internal antennas, Wi-Fi modules, and GPS units. The SMA to IPEX configuration enables flexible connectivity between high-frequency devices and compact antennas, making it ideal for signal routing, testing, and terminal integration.

The KH-IPEXA-SMAKWE-B080H by Kinghelm is a high-performance SMA to IPEX adapter cable engineered for efficient RF signal transmission. With a total length of 70mm, it utilizes RF1.13 coaxial cable with an ultra-thin 1.13mm outer diameter, providing exceptional flexibility for routing in confined spaces. This product achieves an ideal balance between RF performance, structural integrity, and user convenience, making it a preferred solution across industrial terminals, communication equipment, and consumer electronics.

The cable features a high-fidelity IPEX-style terminal with gold-plated contacts to enhance signal integrity and resist oxidation, thereby extending product lifespan. On the other end, it is equipped with a female SMA jack (socket pin) featuring four solder legs and an 11-thread structure for secure and stable connections with standard SMA antennas or RF instrumentation. All components are manufactured through high-precision CNC machining and injection molding to ensure robust interface integrity with no looseness or cold solder joints—suitable for long-term, stable operation environments.

Performance-wise, the KH-IPEXA-SMAKWE-B080H SMA to IPEX adapter cable offers 300V DC withstand capability (10ms duration), supporting medium to high-voltage RF systems. It also features a maximum contact resistance of just 3.0Ω and a minimum insulation resistance of 5.0MΩ, ensuring excellent signal reliability during transmission. Thanks to its high-quality RF1.13 coaxial cable and precision connectors, the product maintains optimal impedance matching and low insertion loss—critical factors in high-frequency performance. It minimizes signal attenuation and standing wave ratio (SWR), thus reducing bit error rates and crosstalk.

Application scenarios for the KH-IPEXA-SMAKWE-B080H SMA to IPEX adapter cable include Wi-Fi modules, 4G/5G modules, GPS devices, Bluetooth antennas, UAV remote control units, wearable smart devices, automotive antenna systems, and telecom base station testing equipment. With its compact size, fine cable diameter, and high flexibility, it's especially suited for environments with limited installation space but high RF stability requirements. For instance, in a car navigation system, it connects the motherboard to the antenna board, ensuring stable GPS reception even during high-speed movement. In a drone controller, it provides high-frequency signal routing from the main control board to an external antenna, significantly enhancing long-range remote control performance.

Another highlight of the KH-IPEXA-SMAKWE-B080H is its full compatibility with Kinghelm’s comprehensive lineup of RF and connector products. As a leading Chinese manufacturer of RF components and connectors, Kinghelm offers not only SMA-to-IPEX cables, but also IPEX receptacles, RF modules, antennas, coaxial connectors, and other one-stop matching solutions. Customers can quickly mix and match components to meet different device requirements, shortening development cycles and improving system integration. All Kinghelm products undergo strict electrical and reliability testing, ensuring excellent batch consistency and shipment stability. The KH-IPEXA-SMAKWE-B080H has already been adopted in multiple OEM/ODM projects and is widely recognized by engineers and solution providers.

Kinghelm KH-IPEXA-SMAKWE-B080H Specification

In conclusion, the Kinghelm KH-IPEXA-SMAKWE-B080H is more than just an RF adapter cable—it is a key component that elevates system-level connection efficiency. Built with premium materials, precise structure, and stable high-frequency performance, it meets the demanding needs of modern RF applications that prioritize miniaturization, performance, and integration. Whether in consumer electronics, industrial communication, or smart terminal development, this cable delivers reliable RF connectivity and is your dependable signal transmission 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.

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