Ni Rhodium was an acceptable Mil-Spec vibration plating for fingers in
the 70's and 80's but then gold became cheaper. Much harder than gold.

Two piece connectors are much better suited to this environment.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of bob wettermann
Sent: Tuesday, March 16, 2010 7:54 AM
To: [log in to unmask]
Subject: [TN] Gold Finger Plating for High Vibration Environments

Dear Technetters:

We are trying to advise a client on PCB specifications for a future
product build. These boards are heavily weighted down with water-cooled
heat sinks
and heavy transformers. In the end use environment the boards are
vibrated under load and eventually the hard gold 4 um thick goldfinger
contacts are rubbed down to the laminate level. 

Besides a mechanical redesign any other plating surfaces anyone would
recommend?

Thanks!


Regards

Bob Wettermann

BEST Inc



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