mattatdi
Mechanical
- Dec 2, 2010
- 1
Hi all,
I am working on a problem where I am using emi fingerstock that clips onto the PCB and makes contact with a bracket that holds this module together. The bracket is made out of galvanized steel. This bracket is then secured to the chassis, which is also made out of galv. The EE tells me that they want to go with gold finish for PCB for its corrosion resistance.
The fingerstock comes standard as BeCu. I was leaning towards nickel plating the fingerstock to somewhat split the difference between the gold and galv. The contact area of the fingerstock would be pretty small relative to the bracket, so would the zinc on the galv work well enough as a sacrificial anode?
Also, is it still the best idea to go with gold finish for pcb? Or would silver or copper be better to use.
Typical conditions: Inside of an amplifier in a rack room.
Thanks
I am working on a problem where I am using emi fingerstock that clips onto the PCB and makes contact with a bracket that holds this module together. The bracket is made out of galvanized steel. This bracket is then secured to the chassis, which is also made out of galv. The EE tells me that they want to go with gold finish for PCB for its corrosion resistance.
The fingerstock comes standard as BeCu. I was leaning towards nickel plating the fingerstock to somewhat split the difference between the gold and galv. The contact area of the fingerstock would be pretty small relative to the bracket, so would the zinc on the galv work well enough as a sacrificial anode?
Also, is it still the best idea to go with gold finish for pcb? Or would silver or copper be better to use.
Typical conditions: Inside of an amplifier in a rack room.
Thanks
