Electronics 01
How Much Current Can a 10 mil Trace Carry? PCB Widths From 4 to 50 mil
A 10 mil trace on 1 oz outer copper carries about 0.89 A for a 10 °C rise and 1.2 A for 20 °C, by IPC-2221. A table for 4 to 50 mil, inner layers, 2 oz copper and the voltage drop.