Прототип PCB быстро и легко
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By formulas from IPC-2221, PCB Trace Width Calculator can estimate the width of copper PCB boards and the trace required under the given current, and at the same time keep the rise in trace temperature not to exceed the limit. Note: The trace on the inner layer need to be much wider than the trace on the outer surface of the board. The results are estimates, actual results may vary depending on application conditions.