# PCB trace temperature-rise screening
# Scope: DC copper trace current at a supplied allowable dissipation; no IPC ampacity claim.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

resistance = 0.05 ohm
allowableLoss = 0.2 W

current := sqrt(allowableLoss/resistance) [A]

check current target: current >= 1.5 A

scenario alternative: resistance = 0.04 ohm