Hi Freddie.
Why do you want to tin-plate your PCB's?
The intermetallic layer created between the Cu and the tin-plating causes an increase in the resistance, and it'll give no better protection than a good PCB-lacquer.
Why do you want to tin-plate your PCB's?
The intermetallic layer created between the Cu and the tin-plating causes an increase in the resistance, and it'll give no better protection than a good PCB-lacquer.
Freddie,
Don't use chemical tin-plating, this may cause failures because of the poor quality of the chemical tin layer.
Regards, P.Lacombe.
Don't use chemical tin-plating, this may cause failures because of the poor quality of the chemical tin layer.
Regards, P.Lacombe.
Thanks for the replys.
So it is bad to use chemical tin-plating.
Then I will use PCB-lacque instead.
/Freddie
So it is bad to use chemical tin-plating.
Then I will use PCB-lacque instead.
/Freddie
There's no need to buy special lacquer. Save your money for other things.
I use Sherwin Williams clear acrylic lacquer. Easily avaible, not particularly expensive, and works like a charm. I have circuit boards over ten years old that look as though they were made yesterday. I spray the board before populating it--the lacquer melts away at the slightest amount of heat, so there's no problem soldering through it.
Grey
I use Sherwin Williams clear acrylic lacquer. Easily avaible, not particularly expensive, and works like a charm. I have circuit boards over ten years old that look as though they were made yesterday. I spray the board before populating it--the lacquer melts away at the slightest amount of heat, so there's no problem soldering through it.
Grey
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