SRC Forum - Message Replies

Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

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

Original Message:

Posted by: Richard Smith
Date posted: Tue Mar 18 10:22:38 US/Eastern 2003
Subject: CHR Capacitor Shelf Life/Aging
Message:
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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Reply:

Subject: CHR Capacitor Shelf Life
Reply Posted by: Richard Smith
Date Posted: Tue Mar 18 14:14:38 US/Eastern 2003
Message:
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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