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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: Joel Mandel (mendel@teledata.co.il )
Organization:ADC Teledata
Date posted: Mon Nov 30 1:35:19 US/Eastern 1998
Subject: Derating Criteria for components & HAST/HALT
Message:
Hello I am a Reliability Eng And I am interested in gathering material to define/update our derating criteria for our components . If any body can refer me to recent articles standards etc I would appreciate. All our products are commerxial telecommunications. In addition I am lookin for information words of wisdom pertaining to the HAST/HALT testing thank you, Joel Mandel Reliability & Quality EngineeR ADC Teledata mendel@teledata.co.il


Reply:

Subject: Derating & Hast/Halt
Reply Posted by: Bruce Dudley (bdudley@alionscience.com )
Organization: Reliability Analysis Center
Date Posted: Wed Dec 2 10:19:50 US/Eastern 1998
Message:
Reliability derating information for commercial parts and applications can be obtained from our "Reliability Toolkit; Commercial Practices Edition". Both derating and failure mode information is stated for most common electronic parts. Numerous papers have been written on the Hast/Halt testing concept. In general, this stress testing reveals many design and component faults so that they can be corrected. The concern is overstressing the units and only finding failure modes that are out of the normal operating range.


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