As electronic devices continue to evolve toward miniaturization and lightweight design, a seemingly small Pogo Pin spring probe connector often plays a vital role. The Kinghelm KH-PG204505-DZ is exactly such a product: modest in appearance yet exceptional in performance. With its compact length of just 4.5mm and high-quality brass alloy construction, this spring-loaded pin connector has become a popular choice across smart hardware, wearable devices, automotive electronics, medical equipment, and more. Though small in size, it delivers impressive capability: a continuous working current of up to 1A and an operating voltage below 12V@25℃, ensuring stable operation in low-voltage, low-current scenarios. Plus, it has passed salt spray testing (5% salt solution, 24 hours without corrosion), proving its remarkable corrosion resistance for reliable connections even in humid or dusty environments.

Kinghelm KH-PG204505-DZ Product Image

The Kinghelm KH-PG204505-DZ Pogo Pin spring probe connector adopts a classic spring structure design that offers flexible stroke compensation. This ensures firm contact even when devices experience minor shifts due to thermal expansion, vibration, or assembly tolerances—reducing risks of signal interruption or unstable current from poor contact. Both the pin and barrel are precisely machined from high-strength brass alloy, which significantly reduces contact resistance and boosts overall mechanical strength. As a result, the product withstands higher mating cycles and offers an extended service life. Stringent testing confirms that under solderability conditions of 230±5℃, the KH-PG204505-DZ achieves wet solder coverage exceeding 95%, greatly enhancing assembly efficiency and yield during mass production.

Despite its tiny 4.5mm length, the KH-PG204505-DZ Pogo Pin spring probe connector doesn’t compromise on performance. Its miniature form factor is perfect for high-density PCB layouts and tight design spaces. Weighing just around 0.04 grams per piece and packaged in protective bags, it simplifies storage and shipping while lowering logistics costs in large-scale procurement. For applications like smartwatches, TWS earbud charging cases, GPS modules, and Beidou communication devices that require frequent connections and steady power delivery, this connector excels—delivering reliable conductivity and the resilience needed for challenging environments. Remarkably, the KH-PG204505-DZ also balances performance and cost, helping more businesses achieve high-quality electrical connections affordably.

The advantages of the Pogo Pin spring probe connector go beyond its size; it embodies “small but mighty” engineering. Its precisely engineered spring ensures consistent contact force over prolonged use, preventing loose connections. Advanced electroplating on the pin surface increases wear resistance and reduces oxidation, enhancing service life. Careful material selection, especially using brass alloy, offers excellent conductivity, workability, and corrosion resistance—allowing the connector to perform reliably in high-humidity, salty, or dusty environments. These thoughtful details make the small KH-PG204505-DZ a trustworthy component behind major projects.

As demand for smaller, more reliable consumer electronics, medical devices, and automotive systems grows, Pogo Pin spring probe connectors are finding even wider applications—from wearables to communication modules, test fixtures to industrial automation. Each stable connection supports overall product quality. Leveraging years of industry expertise, Kinghelm infuses precision and durability into every KH-PG204505-DZ, creating a connector that’s compact yet remarkably dependable.

Kinghelm KH-PG204505-DZ Specification

From microscopic design details to overall product concept, the Kinghelm KH-PG204505-DZ showcases the unique advantages of Pogo Pin technology and Kinghelm’s commitment to quality. Whether in thinner, lighter smart devices or harsher industrial environments, this small Pogo Pin connector continues its silent yet crucial role as the bridge for current and signals—connecting endless possibilities.

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.