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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

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Original Message:

Posted by: David Cash (dcash@howellinst.com )
Organization:Howell Instruments
Date posted: Fri Mar 3 10:14:03 US/Eastern 2000
Subject: error in MIL-HDBK-217F N2 ???
Message:
On page 10-2, CDR style chip capacitor has failure rate of .0020, but a CRW style chip has a rate of .00005. All other styles except variables have rates with at least 3 decimal places before first significant number. Is this a misprint in the manual???


Reply:

Subject: Chip Capacitors
Reply Posted by: Bruce Dudley (bdudley@alionscience.com )
Organization: Reliability Analysis Center
Date Posted: Tue Mar 7 10:28:47 US/Eastern 2000
Message:
The base failure rate for CDR chip capacitors is 0.002 failures per million hours. This database is included in the technical report RL-TR-92-197 "Reliability Assessment of Critical Electronic Components" which shows that all of the ceramic capacitor data is 0.00198 failures per million hours including the chip part.


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