Stainless steel battery contact to Hasal finish pcb
Stainless steel battery contact to Hasal finish pcb
(OP)
I curently have a sub assembley that uses a stainless steel battery contact which makes a kiss connection with a pab on a hasal finish pcb. After a period of 3 to 4 weeks there is evidence of corosion of the pad which is causing the unit not to power up.
My questions are
(1) Has any one ever used stainless steel as a battery contact.?
(2) Is hasal a suitible finish for a fixed kiss connection
for a battery contact. ( 4.5 volts)
(3) if i changed the battery contacts to nicol plated stainless steel and touched up the hasal with solder would this be a plausable rework?





RE: Stainless steel battery contact to Hasal finish pcb
Stainless is a very poor conductive material. It is stainless because it forms a very thin chromium oxide layer that is protective. but that layer is not conductive. The base material is not terriby conductive either. I'd bet you are loosing a good chunk of power from resistance losses by themselves.