Postek (HK) Co., Limited  |  HK Series  |  Datasheet

**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.

Key Features

• Round welded metal shell — hermetic seal, leak rate ≤ 1×10⁻³ Pa·cm³/s
• EMI shielding and radiation resistant
• Changeover (SPDT) snap-action mechanism
• Two termination options: Solder / Wire Lead
• Operating temperature: -65°C to +260°C

Applications

• Aerospace avionics
• Military launch and flight systems
• High-reliability power distribution
• Severe environment instrumentation

2. Technical Specifications

2.1 Electrical Ratings by Model

2.2 Mechanical Specifications

2.3 Environmental Specifications

3. Quality Grades & Standards

4. Circuit Diagram

5. Installation

1. Mounting: Secure with M2 screws. Use mounting washer.
2. Wiring: Solder or wire lead per model variant.
3. Force Limit: Do not exceed 40N on actuator.

⚠️ Disconnect power before installation.

6. Downloads

📥 Download Datasheet (PDF)

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