PCB Impedance: Microstrip, Stripline, Coplanar & Differential Pairs
Wired White v1 Find trace width or edge spacing for 50 Ω lines and 90/100 Ω differential pairs. Compare copper, dispersion and coplanar-ground effects on your stackup.
Circuits and electronics
Wired White v1 
PCB Trace Width Calculator — IPC-2221 & IPC-2152
Wired White v1 Size copper PCB traces from current, temperature rise, copper weight and layer. Compare the IPC-2221 legacy formula with the named SMPS.us IPC-2152 baseline fit.
