KH-PB-22E37-WS Six-Pin Momentary Push Button Switch: Compact Design, Reliable Actuation

Push button switches are among the most fundamental and essential components in electronic human-machine interfaces. From toys and household appliances to industrial testing instruments, countless devices rely on stable and durable push button components. The Kinghelm KH-PB-22E37-WS is a 7 × 7 × 15.9 mm (H) six-pin, through-hole momentary push button switch. With its compact structure and stable electrical performance, it is an ideal choice for momentary triggering applications in space-constrained devices and is widely suited to consumer electronics and industrial control applications.

Kinghelm KH-PB-22E37-WS Product Image

This push button switch features a through-hole, plug-in package and is supplied in bag packaging. With a gross weight of only 0.6 g per unit, its lightweight design makes it suitable for the structural requirements of a wide range of compact electronic products. The switch features a double-pole, double-throw (DPDT) contact configuration with six pins and a non-latching, self-resetting mechanism, commonly known as a momentary switch.

Its rectangular plunger provides a crisp, responsive tactile feel. The contacts close when the button is pressed, and the internal spring automatically returns the button to its original position when released. The switch does not remain latched, making it ideal for control logic that requires an action to be triggered by pressing and released upon letting go. Typical applications include confirmation inputs, momentary signal triggering, reset functions, and wake-up signals.

Durable Materials and Reliable Construction

In terms of structure and materials, Kinghelm has selected components that balance durability with manufacturing compatibility.

The switch housing is made of glass-fiber-reinforced, flame-retardant PBT, offering good heat resistance and dimensional stability. This makes it suitable for through-hole soldering processes, including wave soldering.

The plunger is made of POM (polyoxymethylene), also known as acetal or engineering plastic. This material offers good wear resistance and smooth operation, helping reduce the likelihood of sticking, surface whitening, or damage during repeated operation.

The internal contact springs feature silver-plated composite contacts, providing good electrical conductivity and stable contact resistance to help minimize signal errors and poor contact.

An integrated stainless steel spring ensures fast, consistent return after each press, helping maintain a uniform operating feel over tens of thousands of actuation cycles.

The switch uses PC-style terminals for through-hole PCB mounting. It supports automated through-hole insertion on production lines as well as manual soldering during prototyping and debugging. Once soldered, the terminals form a secure mechanical connection with the PCB, providing good resistance to vibration and shock. This makes the switch suitable for devices exposed to moderate mechanical vibration.

Compact Footprint and Flexible Circuit Design

With a 7 × 7 mm base, the KH-PB-22E37-WS is more compact than conventional switches in the 8 × 8 mm size class. Its overall height of 15.9 mm makes it particularly advantageous for products with limited PCB space or restricted internal enclosure dimensions.

The accompanying datasheet clearly specifies the PCB pad layout, pin definitions, and non-shorting contact diagram. Hardware engineers can use this information directly during PCB layout and circuit design, helping reduce design errors and shorten development cycles.

Unlike conventional four-pin, single-circuit switches, the six-pin DPDT configuration allows two independent circuits to be controlled simultaneously. In applications requiring two signal paths to be switched together or supporting signal-isolation verification, a single switch can trigger both circuits, simplifying PCB routing and reducing component placement requirements.

Kinghelm KH-PB-22E37-WS Datasheet

Wide Range of Applications

The KH-PB-22E37-WS is suitable for a broad range of applications.

• Consumer electronics: Function buttons and reset buttons for handheld testing instruments, portable speakers, electronic toys, and compact smart home modules.

• Small household appliances: Momentary adjustment buttons for fans, humidifiers, and food processors.

• Industrial applications: Signal-triggering buttons for basic industrial control boards, test fixtures, and security system accessories.

Because it uses a non-latching, self-resetting mechanism, this switch is not suitable as a conventional latching power switch for maintaining continuous power in the ON state. However, for user interfaces and control circuits requiring momentary signal inputs, it offers an attractive balance of cost-effectiveness and reliability.

A Practical Momentary Switch Solution from Kinghelm

As a domestic electronic component brand, Kinghelm has long focused on the development and manufacturing of RF, connectivity, and switching components. The KH-PB-22E37-WS reflects the brand's emphasis on quality control, environmental compliance, and batch-to-batch consistency. Its bag packaging also makes it convenient for small- and medium-volume procurement, prototyping, and product development.

For hardware developers and electronics manufacturers, the KH-PB-22E37-WS combines a compact footprint, dual-circuit switching capability, and compatibility with common through-hole soldering processes. It is a versatile momentary push button solution that balances cost and performance.

As electronic products continue to evolve toward smaller, more integrated designs, fundamental components such as the KH-PB-22E37-WS play an essential role in ensuring stable device operation. Although small and often overlooked, these components form the foundation of reliable human-machine interaction. Its clear tactile feedback, dependable electrical contact, and compact dimensions give this switch a distinct place among available push button solutions, providing a stable and economical option for a wide variety of electronic devices.

About Kinghelm

Kinghelm (www.kinghelm.net) specializes in microwave RF and connectivity technologies. Its extensive product portfolio covers BeiDou/GPS antennas, Bluetooth antennas, Wi-Fi antennas, RF jumper cables, signal connectors, board-to-board connectors, sockets, pin headers, and electronic switches.

Its popular products include RF coaxial connectors such as KH-IPEX-K501-29, KH-SMA-K513-G, KH-SMA-KE-Z, KH-SMA-KWEI7-G, and KH-MMCX-Z, as well as the KH-TYPE-C-16P USB connector. These products are widely used in new energy vehicles, smart terminals, the Industrial Internet, smart cities, commercial aerospace, automotive electronics, and low-altitude unmanned aerial vehicles (UAVs).

Leveraging its modern manufacturing facility in Luzhai, Guangxi, China, and intelligent, flexible production lines, Kinghelm has established an integrated manufacturing process encompassing product design, mold development, performance testing, and mass production. The company offers end-to-end development capabilities and supports large-volume production with consistent quality and reliable, short lead times, providing customers across industries with dependable, application-specific connectivity solutions.

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