PWB Internal Trace Capacity
The chart above shows the amount of current an Internal trace on a printed wiring board can handle. The table provides the current rating based on trace cross section in square mils, temperature rise and current in amperes.
For example; if the trace width is 100 sq mils, that trace can accept between 1.5A and 4 amps depending on the acceptable temperature rise.
There are a number of pages on the web site that cover Printed Wiring Board issues, but these two links point to all of them: Refer to the page covering PWB Terms or
PWB Information
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