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Hello,
Apart from the Phosphor Bronze, this sounds like an appropriate finish for
card edge fingers.
The Nickel providing a hard, protective 'anvil' and the gold providing a
corrosion resistant, low resistance contact.
Phosphor bronze is usually the springy metal that the mating connector's
contacts are made from. they too would be Ni/Au plated for the same reasons.
It's best to have the same metal surface on the contacts as the fingers.
Phil.
At 13:38 2/03/00 -0800, you wrote:
>I received a new drawing which states the following note:
>
>Edge connector: Phosphor Bronze with .00003" minimum gold over .00005"
>minimum Nickel, both side.
>
>Is it sound OK as this is applicable to gold finger?
>
>re,
>ken patel
>______________________________________________________
>Ken Patel Phone: (408) 490-6804
>1708 McCarthy Blvd. Fax: (408) 490-6859
>Milpitas, CA 95035 Beeper: (888) 769-1808
Phil Dutton C.I.D.
Senior CAD Technician
IPC Certified Interconnect Designer
Vision Abell Pty Ltd
Second Avenue, Technology Park,
Mawson Lakes. SOUTH AUSTRALIA 5095
================================
Phone : (08) 8300 4400 (reception)
Fax : (08) 8349 7420
email: [log in to unmask]
Internet Page: http://www.vsl.com.au
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