In the design and manufacturing of electronic devices, the power jack plays a crucial role as a core component connecting the power supply system. Its performance and reliability directly affect the stability of the device. The KH-DC-003-1.3 DC power jack by Kinghelm offers a compact design, high compatibility, and reliable performance, making it an ideal choice for compact electronic devices. This article will explore the product’s technical specifications, application scenarios, and competitive advantages.

Kinghelm KH-DC-003-1.3 Product Image

1. Product Overview

The KH-DC-003-1.3 is a DC power jack developed by Kinghelm, specifically designed for compact electronic devices. Packaged in bulk and weighing only 0.352g per unit, it is ideal for mass storage and transportation. Its core feature is the right-angle plug-in mounting design, suitable for circuit boards with limited space. The 1.3mm inner contact diameter and 3.8mm outer contact diameter make it compatible with various cable specifications, ensuring stable and secure connections.

2. Technical Specifications & Performance

lContact Dimensions: Inner diameter of 1.3mm, outer diameter of 3.8mm. Compatible with standard DC power plugs to prevent poor contact caused by dimensional mismatches.

lElectrical Performance: Rated current of 500mA and rated voltage of 30V, suitable for powering low-consumption devices such as smart home sensors and portable instruments.

lStructural Design: Right-angle pin design saves horizontal space on the PCB, allowing for flexible internal layouts. The metal contacts feature a plating process that enhances oxidation resistance and conductivity.

3. Typical Applications

Thanks to its compact size and low voltage characteristics, the Kinghelm KH-DC-003-1.3 DC power jack is widely used in the following areas:

lConsumer Electronics: Power interface for small devices such as Bluetooth earbud charging cases and mini speakers.

lSmart Devices: Power connection for low-power IoT sensors and smart locks.

lIndustrial Control: Power modules in instrument panels and handheld testing devices.

Its right-angle design is particularly well-suited for PCB layouts with tight space constraints, aiding engineers in optimizing device structure.

4. Key Advantages

lHigh Compatibility: Standardized contact dimensions ensure compatibility with mainstream DC plugs, reducing supply chain complexity.

lReliability & Durability: Tested under 30V/500mA load for long-term stable operation. Gold/nickel-plated contacts extend product lifespan.

lLightweight & Eco-Friendly: RoHS-compliant materials; weighs less than 0.4g, supporting the lightweight trend in modern electronics.

Kinghelm KH-DC-003-1.3 Specification

5. Conclusion

The Kinghelm KH-DC-003-1.3 DC power jack stands out as a highly cost-effective connector thanks to its precise contact design, right-angle installation, and reliable performance. Whether for consumer electronics or industrial equipment, its compact build and dependable functionality boost overall product competitiveness. For designers seeking efficient power connection solutions, this model is definitely 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-DC-003-1.3To Product Page