Products

Postek (HK) Co., Limited | HK Series Postek (HK) Co., Limited | HK Series | 8 Model Variants 1. Product Overview The HK-KWQM4-4Z is a hermetically sealed snap-action micro switch featuring welded metal shell construction. Designed and qualified for high-reliability applications, it delivers exceptional EMI shielding, total ionizing dose tolerance up to 100 Krad(Si), and continuous operation across an extreme temperature range from -184°C to +260°C. The changeover (SPDT) circuit configuration with solder termination makes it suitable for mission-critical electronic and electrical systems. ...

**Postek (HK) Co., Limited | HK Series Postek (HK) Co., Limited | HK Series HK-KWQM5-2-28 Hermetically Sealed Micro Switch Postek (HK) Co., Limited | HK Series 1. Product Overview The HK-KWQM5-2-28 is a hermetically sealed micro switch engineered for extreme low-temperature operation down to -70°C. Featuring screw terminal connections and rugged welded metal shell construction, it is qualified for military and aerospace applications requiring high reliability under severe environmental conditions. The changeover (SPDT) configuration delivers 25,000 electrical cycle life with exceptional contact stability. ...

**Postek (HK) Co., Limited | HK Series Postek (HK) Co., Limited | HK Series 1. Product Overview The HK-KWQMY1-0Z is a round-format hermetically sealed micro switch with welded metal shell construction. It provides exceptional EMI shielding, radiation resistance, and reliable operation across a wide temperature range from -65°C to +260°C. Available with solder or wire lead termination, the changeover (SPDT) circuit configuration makes it suitable for aerospace and high-reliability military applications. ...

**Postek (HK) Co., Limited | HK Series Postek (HK) Co., Limited | HK Series HK-KWQMY2-3AT11-1 Miniature Hermetically Sealed Micro Switch Postek (HK) Co., Limited | HK Series 1. Product Overview The HK-KWQMY2-3AT11-1 is a miniature hermetically sealed micro switch featuring push plate actuation in a compact form factor. With an operating temperature range from -55°C to +233°C and precision snap-action mechanism, it is engineered for space-constrained high-reliability applications in aerospace, military, and severe environment control systems. ...

**Postek (HK) Co., Limited | HK Series Postek (HK) Co., Limited | HK Series HK-KWQMY2-3AT128-2 Dual-Circuit Hermetically Sealed Micro Switch Postek (HK) Co., Limited | HK Series 1. Product Overview The HK-KWQMY2-3AT128-2 integrates two independent KWQMY2-3AT11-1 micro switch mechanisms within a single hermetically sealed housing. This dual-circuit configuration enables synchronized or independent circuit switching, making it ideal for applications requiring redundant control, fail-safe operation, or coordinated dual-channel signal management. ...