PWB Etched Copper Current Capacity

PWB Etched Copper Current Capacity

The chart above shows the amount of current an External 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 3.5A and 10 amps depending on the acceptable temperature rise.

Key Phrase:
How much current will a trace handle.
What is the current rating of a trace.
What trace width will handle a certain amount of current.
For more information refer to the page covering PCB Terms. For a large listing of Printed Circuit Card definitions.
Addition PWB Information