PCB Trace Width and Current Relationship: Calculation and Reference
1. The calculation method is as follows: First, calculate the cross-sectional area of the track. Most PCB copper foil thickness is 35um (if unsure, you can ask the PCB manufacturer; 1 ounce is 35um, but it is often less than 35um). The cross-sectional area is obtained by multiplying the trace width by the thickness, and … Read more