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Technical Article

How do I calculate PCB trace max current?

Time:2019-06-18 13:42:41 Click:

In general, PCB copper thickness is 1oz or so; As for PCB trace width, if 1mm is able to flow through 1A current; Then 2mm can flow through 2A current.


That’s to say, if PCB trace thickness keeps the same, double PCB trace width will follow double PCB trace current; Similarly, as long as PCB trace width keeps the same, double PCB copper thickness also means double PCB trace current;



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