Battery contact material and plating specs
Battery contact material and plating specs
(OP)
I have a design for a product with a CR2032 battery. Due to space constraints, we needed to design a custom metal piece that works as battery contact and button contact.
We know that the clip will be phosphor bronze with tin-nickel plating (similar to Keystone brand products). However, we do not know what specific grade of phosphor bronze to use, or which plating specs (composition, thickness) would be best.
I want to spec material and plating that are readily available and widely accepted and used in the PCB component industry.
We know that the clip will be phosphor bronze with tin-nickel plating (similar to Keystone brand products). However, we do not know what specific grade of phosphor bronze to use, or which plating specs (composition, thickness) would be best.
I want to spec material and plating that are readily available and widely accepted and used in the PCB component industry.
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RE: Battery contact material and plating specs
There is a battery contact design guide at:
http://www
It is fairly vague on some of the finer details.
In the past, we have used 50 microinches Au over 30 microinches Ni on phosphor bronze contacts. These contacts were used to carry low-level signals so it was important that contact resistance was low. For battery contacts, we have used 20 microinches Ni on steel (not on phosphor bronze.)
If anyone does know what is widely accepted and used, I would be curious too.