| Electronics > Beginners |
| Lifetime of a seminconductor is doubled for every 10 degC below Tj(max) |
| (1/2) > >> |
| ocset:
Hi, Ive heard the above rule, but can't find any official data on it, do you know of any? Eg for example , in the case of a Power FET and diode in a 60W offline flyback SMPS. |
| sibeen:
I suspect it comes from, or is closely related to, the Arrhenius equation. |
| BravoV:
What is the baseline ? Say you can maintain it stable at 25 C, what will be the lifetime ? :-// |
| not1xor1:
--- Quote from: treez on November 01, 2018, 06:17:24 am ---Hi, Ive heard the above rule, but can't find any official data on it, do you know of any? Eg for example , in the case of a Power FET and diode in a 60W offline flyback SMPS. --- End quote --- it is worthwhile a copy & paste :) --- Quote ---A historically useful generalization supported by Arrhenius' equation is that, for many common chemical reactions at room temperature, the reaction rate doubles for every 10 degree Celsius increase in temperature --- End quote --- more details and links here: https://en.wikipedia.org/wiki/Arrhenius_equation |
| AndyC_772:
https://www.microsemi.com/document-portal/doc_view/124041-calculating-reliability-using-fit-mttf-arrhenius-htol-model |
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