![]() One you’ve sized your traces for controlled impedance, it can be difficult to determine the temperature rise just by looking at a table, and you’ll have to work with a calculator. One problem with most tables is that they are not built to account for controlled impedance routing. When working with a power rail, high-voltage components and other portions of your board that are sensitive to heat, you can determine the trace width you need to use in your layout with a PCB trace width vs. However, this is where you need to consider the current flowing in a given trace. This is where you’ll need to properly size trace widths to keep temperature within a certain limit. current tableĬopper is a strong conductor with high melting point, but you should still do your best to keep temperatures low. Keep your board cool with our PCB trace width vs.
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