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Mon, 22 Oct 2007 11:41:17 -0600 |
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Reasonable suggestion, in many ways.
However, I've spent some time looking into what a QPL is (we don't build
military equipment, so I was unfamiliar with the term).
Unfortunately, after reviewing what is involved in achieving QPL status,
I think if we went only with QPL components, a 10K 0402 chip resistor
would no longer cost only $0.002.
I think I need to determine an acceptable compromise between QPL
approval process and my own gut feeling on whether a part is a good
cross. I have to figure out how to document my gut feeling so my
evaluation process is repeatable for others.
Maybe I should have chosen different terminology. I think I'm opening
this up for a Dewey free-for-all... :)
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]
Sent: October 19, 2007 11:45 AM
To: [log in to unmask]
Subject: Re: [TN] Second sources - generic components
Hi
Why not consider adopting the Military QPL's. Presumably your work
would be largely done.
Monitoring would be your continued responsibility.
Bernie Kessler
At 10:33 AM 10/19/2007:
>Has anyone defined any internal standards for how to approve second
>sources for "generic" components by datasheet review alone, without
>running exhaustive tests on every source?
>I just don't see the point in running 3 weeks of environmental and
>stress tests in order to qualify a $0.002 10Kohm chip resistor second
>source. I should be able to look at a datasheet and say "yes this is
>OK". But when you make OEM products you need to justify why you are
>approving it with this method, and I would like to write up some sort
of
>standard to cover off the bases.
>
>I'm looking for places to start. Thoughts?
>
>Thanks as always, and regards,
>Genny.
>
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