always had a hard time with distributors and certs. no traceability possible
often. no test data concerning solderability or whatever. customers partly
to blame as price drives the whole thing with no recourse.

moonman
----- Original Message -----
From: "Richard Carruth" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, April 30, 2002 2:29 PM
Subject: [TN] Proposed lifting of component date code restrictions


> If manufacturers continue to provide date codes for their products but
> distributors discontinue tracking and segregation by date codes the result
will
> be, mixed date code lots sent to the customer. In many cases assembly
houses
> that use raw components must capture suspect material by date code. In the
event
> of field failures or customer defects resulting in corrective action
> requirements it is usually imperative to know the problem parts date code
to
> cover effectivity. I feel that the date codes application should be
> standardized. I have also seen where we needed to specifically order
certain
> date codes because the later date code product did not function properly
for the
> application.
>
> On the topic of old components verses new components. I have personally
seen
> some pretty old,  nasty components from brokers that appeared to have been
> previously used and some that were so oxidized that the leads were nearly
black.
> So the solderability of 3 or more year old components is a concern. Date
codes
> need to be standardized and tracked to ensure product quality and
> accountability.
>
> Regards,
>
> Richard Carruth
> Quality Engineer
>
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