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1996

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From:
"Seppanen Gordy" <[log in to unmask]>
Date:
22 May 1996 12:08:13 U
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We are investigating a similar situation with the exception that the
connection is maintained inside a hermetic (non-oxygen, little moisture)
enclosure.  Current testing (>8 weeks temperature cycling) shows that no
significant change in the connection resistance has occured.  I don't know the
voltage or the connector resistance level at which problems begin to develop
in this circuit.

Gordy Seppanen
Materials Engineer-Surface Finishing Lab
Honeywell Inc
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_______________________________________________________________________________
To: TechNet
From: Tippit, Jack on Wed, May 22, 1996 11:12 AM
Subject: assy:compatability gold vs tin/lead


We have instances where tin/lead coated pins are inserted into gold plated 
sockets, etc.  Components even have gold/tin-lead or gold/tin interfaces, 
such as an IC socket with a gold contact with a tin sleeve.  Mil-Std-889B 
indicates gold as being incompatable with tin or tin/lead.  Has anyone 
looked into this issue and is there a potential for corrosion formation and 
associated problems?  Again, I just refereing to mechanical contact ( not 
soldering ).

Thanks,
Jack Tippit
Wilcox Electric
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