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Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum ( )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Posted by: Richard Smith
Date posted: Tue Mar 18 10:22:38 US/Eastern 2003
Subject: CHR Capacitor Shelf Life/Aging
Can anybody please refer me to a source of information on Capacitor Aging and Shelf Life (aging mechanisms and reliability of older components). I am particularly interested in CHR capacitors (fixed, metallized, plastic film dielectric). Thanks in advance.

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Subject: CHR Capacitor Shelf Life
Reply Posted by: Richard Smith
Date Posted: Tue Mar 18 14:14:38 US/Eastern 2003
Thank you very much for the detailed answer, it was greatly appreciated. Do you happen to have any information on the degradation mechanisms of CHR capacitors (hermetic and non-hermetically sealed) with respect to their shelf life prior to assembly into a PWB (i.e. dormant storage) ? In this case electrical stress would not be a factor as the device is non-operating. Best regards.

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