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October 2015

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Subject:
From:
Tan Geok Ang <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Tan Geok Ang <[log in to unmask]>
Date:
Fri, 30 Oct 2015 06:26:25 +0000
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Hi JK, Steve, Julie and all,
				Thank for your input and sharing. Have a nice day.
Regards
Geok Ang
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Julie Silk
Sent: Thursday, 29 October 2015 11:50 PM
To: [log in to unmask]
Subject: Re: [TN] Press-Fit Connectors for Space application

The other thing to worry about for space is that most press-fit connectors are tin-plated.  The RoHS exemption 11b that allowed tin-lead on these expired.  For Industrial Monitoring and Control, we got a replacement exemption IV-36 to re-allow Pb in the terminations.  But manufacturers have already converted most of their parts to tin plating.  Adding the necessary compression for press-fit combined with space conditions sounds like a great recipe for generating whiskers.  The dimensional requirements on these parts don't lend themselves to solder-dipping for mediation.  Evaluate carefully.

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