– Extensive testing may exceed the cost of new parts, especially for low-value components. The standard is most beneficial for high-reliability or high-cost parts (e.g., aerospace, medical, industrial drives).
– For obsolete components, reused parts may be the only option. IEC 62309 provides a defensible qualification path, but residual life estimation remains probabilistic. – Extensive testing may exceed the cost of
| Test Type | Purpose | Application Example | |-----------|---------|----------------------| | Visual & X-ray inspection | Detect cracks, corrosion, rework | PCBs, connectors, capacitors | | Parametric electrical test | Verify gain, leakage, timing | ICs, transistors, relays | | Burn-in (48–168 hrs at elevated temperature) | Expose infant mortality failures | Power semiconductors | | Thermal shock | Detect delamination or solder joint weakness | Automotive control modules | | Vibration + operational test | Intermittent fault detection | Electromechanical parts (fans, switches) | IEC 62309 provides a defensible qualification path, but