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Reliability prediction - default derating table?

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Level 4

Reliability prediction - default derating table?

Hello PTC,

 

What derating parameters will be applied on components with no electrical stress specified. I am working on MIL-HDBK-217 (N2) reliability predictions. Is NAVSEA SD-18 used?

 

I have done some spot checking (against RIAC System Reliability Toolkit, Table 5.1.2-1)  but am unable to determine what will be used across all different kinds of parts and temperatures. I have compared different levels of electrical stresses to see what failure rate is calculated for a thick film resistor, ceramic capacitor, and a Schottky diode. May see attached. I am currently on Windchill 10.1.

 

Thank you!