PCB wire width and current relationship, the original is calculated in this way
I. The calculation is as follows First calculate the cross-sectional area of Track, most PCBs have a copper foil thickness of 35um (ask the PCB manufacturer if you’re not sure, 1 oz is 35um, in fact, they’re all less than 35um) it multiplied by the line width is the cross-sectional area, note the conversion to…