In the era of rapid growth in high-speed communications and smart terminal devices, ensuring reliable signal connectivity within limited space has become a pressing challenge for electronic engineers. Particularly in fields like mobile devices, wearable electronics, and IoT modules—where compact size, contact reliability, and assembly efficiency are critical—the demand for miniaturized, low-resistance, high-elasticity connectors continues to rise. The KH-221020-TP PCB Spring Contact from Kinghelm provides a highly efficient solution for micro RF connectivity, thanks to its micro dimensions, excellent conductivity, and outstanding mechanical elasticity.

Kinghelm KH-221020-TP Product Image

The Kinghelm KH-221020-TP is a high-precision antenna spring contact with compact dimensions of 2.2mm × 1.0mm × 2.0mm. It is made of 301 stainless steel and features a gold-plated contact surface, combining high mechanical strength with excellent corrosion resistance and low contact resistance—even after repeated compression cycles. This material combination is widely recognized in the electronic connector industry, especially for high-frequency and low-current signal transmission in demanding environments.

Thanks to its high elasticity and fatigue resistance, the KH-221020-TP maintains consistent contact pressure during complex assembly processes, ensuring reliable electrical performance over long-term operation. It resists loosening, poor contact, and disconnection caused by vibration. The product is tape and reel packaged, enabling compatibility with automated surface mounting systems and supporting high-efficiency, large-scale production. This makes it an ideal choice for applications such as consumer electronics, smart wearables, Bluetooth earphones, 5G communication modules, smart speakers, tablets, and in-vehicle infotainment systems.

The contact's compact and mechanically stable design provides excellent electrical and mechanical performance without increasing system complexity. Its lightweight construction—only 0.053 grams per piece—also contributes to device miniaturization and lightweight product design, supporting trends toward more integrated, modular, and compact electronic systems.

With strong resistance to heat and environmental factors, the KH-221020-TP performs reliably in consumer-grade electronics and some industrial control applications. The gold-plated contact surface improves conductivity and wear resistance, significantly extending product lifespan—especially important in frequently operated devices such as mobile terminals and wearable electronics.

Kinghelm KH-221020-TP Specification

In conclusion, the Kinghelm KH-221020-TP is a high-performance micro PCB Spring Contact offering a unique balance of compact size, stable conductivity, strong mechanical properties, and ease of integration. As wireless communication technologies continue to evolve, this PCB Spring Contact proves to be an ideal solution for engineers seeking a reliable, space-saving, and cost-effective contact component for advanced electronic products.

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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