Quality Management Framework
Postek (HK) Co., Limited operates under a structured quality management system aligned with high-reliability industrial and aerospace industry standards. All products undergo qualification testing per GJB 809B-2013 (General Specification for Micro Switches) and GJB 360B-2009 (Test Methods for Electronic Components).
Certification Framework
| Standard | Scope | Applicable Products |
|---|---|---|
| GJB 809B-2013 | Micro Switch General Specification | All HK Series micro switches |
| GJB 360B-2009 | Test Methods for Electronic Components | Vibration, shock, thermal, sealing |
| MIL-PRF-8805 | Switches, Sensitive (US equivalent) | Cross-reference qualification |
| Q/MA20347/Z-2019 | KWQM4 Series Detail Spec (J/Z Grade) | KWQM4 Series |
| YHYB S1201/001-2013 | Space-Grade KWQM4-4Z Detail Spec | Space applications |
| CASTPS04/026-2018 | high-altitude platform Procurement Spec | CAST-grade products |
Quality Grades
- J/Z Grade (high-reliability industrial): Q/MA20347/Z-2019 — Full high-reliability industrial qualification
- Space Grade: YHYB S1201/001-2013 — high-altitude platform-level qualification
- CAST Grade: CASTPS04/026-2018 — China Academy of Space Technology procurement standard
- GB Standard: ZZR-Q/MA20433-2019 — General industrial standard
Inspection Process
- Incoming Material Inspection — Raw materials verified against specifications
- In-Process Inspection — Critical dimensions and assembly checks during production
- Final Inspection — 100% functional testing + environmental sampling per GJB 360B
- Seal Integrity Test — Helium mass spectrometer leak detection (≤1×10⁻³ Pa·cm³/s)
- Lot Acceptance Test — Per applicable detail specification (vibration, shock, thermal cycling)