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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: Sun Feb 14 2:14:33 US/Eastern 1999
Subject: Commercial components vrs industrial
Message:
Recently I have been hearing there is no difference between commercial component production lines and industrial component production the only difference is the testing at the end of the line. Is thia true ?if so what risk is it to use a commercial componet for industrial temperatures?


Reply:

Subject: Commercial Components
Reply Posted by: Bruce Dudley (bdudley@alionscience.com )
Organization: Reliability Analysis Center
Date Posted: Tue Feb 16 14:38:45 US/Eastern 1999
Message:
Some microcircuits are specifically designed for extended temperature conditions, other are mearly up-screened through testing. To determine which situation it is, one must contact the part manufacturer. In both of these cases, all electrical parameters for the part should be met across the entire temperature range. The risk of using a commercial part from an industrial/commercial line that is operated beyond the stated temperature range is the problem of poor or no electrical performance at the extremes. If you need good performance or high reliability for extended temperatures, then the temperature designed industrial grade part or the up-screened industrial part is the best approach.


Reply:

Subject: Com. Vs. Industrial Components
Reply Posted by: Mark Mobley (mark.mobley@inteq.com )Baler Hughes Inteq
Date Posted: Tue Mar 23 11:33:33 US/Eastern 1999
Message:
It does not matter if the part is classified as "military", "industrial", or commercial, they all come off the same fabrication line. The difference: They are tested and qualirfied to those ratings (i.e. the IC). Packaging may differ. Some plastic parts made today are far superior to their military/aerospace counterparts built in the 70s and 80s. I work in an atmosphere where our designs need to operate at 200C and have found some commercial parts to work very well at 200C, even as high as 220C.


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