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Date: | Wed, 24 Nov 2004 12:09:31 EST |
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Hi All!
First of all, I would like to wish everybody a safe and happy Thanksgiving!
I have an issue that I would like to bounce off of you all. We're building
an assembly that uses some Samtec "Power Combo Sockets", here's the *.PDF link
to it:
_http://www.samtec.com/ftppub/pdf/PCS2.PDF_
(http://www.samtec.com/ftppub/pdf/PCS2.PDF)
Due to the design of assembly, we had to hand solder these in. The hole
diameter in the board for the power pins of these sockets are .072", Samtec
recommends .058".
We experienced some sockets that had solder flowing up into the power pin
contacts to the point that prevented full insertion of the mating header, so we
removed the solder to allow full insertion using a solder extractor.
The contacts for the power pins are Tin plated as you can see from Samtec's
drawing, so there really is no contamination from the solder as there would
be with gold plated contacts which the signal pins are plated with
Now we're being told that our rework was unacceptable, and that the sockets
need to be replaced...I don't see what we did affects the performance of the
socket in any way.
If the mating header can be fully inserted, then electrical contact should
be fine in my opinion. If anything, I feel that the electrical contact may have
been improved slightly due to the tighter fit between the header pin and the
socket contact...it surely isn't degraded.
Am I out in left field about this?
I really appreciate any feedback!
-Steve Gregory-
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