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April 2007

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Subject:
Dome Switch finish
From:
Tom Burek <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Tom Burek <[log in to unmask]>
Date:
Wed, 18 Apr 2007 15:55:48 -0600
Content-Type:
text/plain
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Greetings Technetters,

What is your experience with using a HASL finish as the contact point for 
a dome switch?
Dome Switch has a nickel plating.

How about Electrolytic Gold as contact point?
30-50 micro-inches gold over 100-300 micro-inches Nickel

 2 million+ switch cycles.

Thank you in advance.

Tom

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