Assuming you don't care about contact resistance and variable contact
impedence, pick the least corrodable and least reactive with between contact
interfaces.
-----Original Message-----
From: Eric Christison <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Thursday, October 28, 1999 8:21 AM
Subject: Re: [TN] Contact Materials


>> We are using a phosphor bronze leaf spring mounted on a PCB to contact to
a
>> dome nut on a sensor.
>>
>> We currently have two options for material on the dome nut - stainless
>>  steel
>> of mild steel with a zinc plate.
>>
>> My question is, which of these would be best and are these materials
>> suitable at all?
>>
>> Help!
>>
>> Neil Atkinson
>> Quality Manager
>> Stadium Electronic Controls
>> Tel: 01429 266544
>>
>
>
>Neil,
>
>You haven't given much information on how the parts are contacted,
frequency,
>force, environment ....
>
>However, if the two parts are in continuous contact then stainless will be
less
>likely to cause galvanic corrosion than zinc when in contact with bronze.
If
>the parts are in contact but not soldered a small amount of corrosion will
>disrupt electrical continuity.
>
>Hope this helps,
>
>
>
>Eric Christison
>
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