Get in touch with PCBark Company
Interactive SI Tool
Check Your Trace Against 50 Ω
Estimate single-ended trace impedance for a high-speed PCB using the IPC-2141 approximation. Switch between surface microstrip and stripline, then check your trace against a 50 Ω target.
- 1 oz Cu≈ 1.4 mil copper thickness
- 1 mil= 25.4 µm
- Target50 Ω single-ended
Controlled Impedance Calculator
Estimate single-ended trace impedance using the IPC-2141 approximation, then check it against a 50 Ω target.
mil
mil
Dk
Formula: IPC-2141 surface-microstrip / stripline approximation. This is a first-order estimate for planning only — true controlled impedance depends on copper roughness, solder mask, etch tolerance, and dielectric variation, and is confirmed with a field solver and a TDR-tested coupon. 1 oz copper ≈ 1.4 mil; 1 mil = 25.4 µm.
