As electronic devices continue to evolve toward portability, compact structures, and multi-environment use, audio connectors are no longer simple signal interfaces. They play a direct role in overall device stability, durability, and user experience. Especially in products that require resistance to moisture, dust, and frequent handling, the selection of an appropriate headphone jack becomes a key part of hardware design. The Kinghelm KH-PJ-20001-05SBAP-A 2.5mm waterproof audio jack is developed with these practical application needs in mind.

Kinghelm KH-PJ-20001-05SBAP-A Product Image

Designed for Challenging Use Environments

The Kinghelm KH-PJ-20001-05SBAP-A features an IP67 protection rating, which helps reduce the impact of water ingress and dust exposure during everyday use. This level of protection makes it suitable for devices that operate in relatively demanding environments, such as portable electronics, outdoor equipment, or functional terminals that may be exposed to humidity or splashes.

Its round mating interface supports stable physical contact during insertion and removal, helping maintain consistent signal transmission. From a user perspective, this structure also contributes to smoother operation during repeated plug-in cycles, reducing the likelihood of loose connections over time.

Surface-Mount Structure for Efficient Assembly

This model adopts a surface-mount (SMD) design and is supplied in tape-and-reel packaging, making it compatible with automated assembly processes. Such packaging and mounting methods align well with modern electronics manufacturing, where efficiency and placement accuracy are essential.

With an overall length of approximately 12.6 mm, the connector balances compact size with structural integrity. This dimension allows designers to integrate the jack into space-constrained PCB layouts while maintaining mechanical stability, supporting flexible internal product design.

Material selection Focused on Reliability

The contact components of the KH-PJ-20001-05SBAP-A are made from a combination of phosphor bronze and stainless steel. This material selection supports consistent electrical conductivity while offering resistance to wear caused by repeated insertion and removal. For audio applications, maintaining stable contact performance is critical to ensuring uninterrupted signal transmission.

The connector is rated for a current of 1A, which meets the requirements of typical audio signal applications and related electronic devices. Balanced electrical parameters help ensure stable operation across a wide range of usage conditions.

Wide Operating Temperature Range

With a working temperature range of -25°C to +85°C, this 2.5mm audio jack can function reliably across various environments. This makes it suitable not only for standard consumer electronics but also for devices that may experience temperature fluctuations during outdoor or mobile use.

Temperature adaptability is an important consideration in connector selection, as it directly affects long-term reliability and performance consistency in different operating scenarios.

Kinghelm KH-PJ-20001-05SBAP-A Specification

Application Scope and selection Value

As part of the Kinghelm audio connector portfolio, the KH-PJ-20001-05SBAP-A is designed for 2.5mm headphone interface applications, including portable audio devices, functional electronic terminals, and compact equipment requiring waterproof performance. When selecting audio connectors, factors such as protection level, mounting method, material composition, and size all contribute to the overall stability of the final product.

From a practical design standpoint, this 2.5mm waterproof audio jack emphasizes dependable connections, environmental adaptability, and manufacturing compatibility, making it a suitable option for projects that value long-term usability and stable performance under varied conditions.

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.