PCB trace width / current
IPC-2221 minimum trace width for a current and temperature rise, or the current a width can carry, plus resistance and drop.
Width0.3 mm11.8 mil
Resistance (25°C)83.41 mΩDrop 83.41 mV, loss 83.41 mW
IPC-2221 is a conservative rule of thumb. For high current or dense boards use IPC-2152 or a thermal simulation.
I = k · ΔT^0.44 · A^0.725 (k = 0.048 / 0.024, A in mil²)
Results are for design reference only. Check the datasheet and measure.