> 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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