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June 2001

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Subject:
From:
John Fahey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 13 Jun 2001 10:45:55 -0500
Content-Type:
text/plain
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text/plain (21 lines)
Is it common to see values of capacitors drift after temperature cycling? I
had a 15% ICT fallout on some caps after 48 hrs temperature (85deg)
cycling.
The values drifted @+/- 11% from their nominal. The component specs allow a
+/- 10%, but I am curious why the moderate temperature cycling would cause
a 15% failure rate for capacitor value drifting when they were tested on
the ICT second time around.

The ICT parameters/set up did not change and I had 100% ICT pass rate first
time around.

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