Low-power electric contact
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United States of America Patent
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-
Jul 13, 1982
Grant Date -
N/A
app pub date -
Oct 1, 1980
filing date -
Oct 8, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low-power electrical contact particularly suitable for switching and plug-in connections. The contact comprises an outer contact layer and a substrate composed of a copper base alloy. The contact layer consists essentially of an alloy of 35-55% by weight gold, 18-33.5% silver, 30-40% palladium, and (i) 1-6% indium, or (ii) 0.5-2% tin together with 0.5-2% indium. An intermediate layer of nickel or copper-nickel may be interposed between the contact layer and the substrate.
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