Impedance Calculation For Stripline Trace Type

Streamline your PCB design process with WELLER’s easy-to-use Stripline Trace Impedance Calculator. Obtain a quick and reliable impedance estimate for your high-frequency circuit boards in seconds. This tool is ideal for initial design validation and impedance-controlled PCB prototyping.

For Prototype & Estimation Use

This calculator provides a close approximation for asymmetric stripline traces. Please note that for simplicity, it does not account for factors like surface finish or solder mask effects. The results are intended for guidance, and final manufacturing values may vary.

How to Use the Calculator

This calculator provides a close approximation for asymmetric stripline traces. Please note that for simplicity, it does not account for factors like surface finish or solder mask effects. The results are intended for guidance, and final manufacturing values may vary.

  1. Select the parameter you wish to calculate.
  2. Input your known trace dimensions and material properties (e.g., trace width, dielectric height, Er value).
  3. Adjust values as needed and get your impedance result instantly.
wtErhh
Trace thickness (t)
Height (h)
Trace width (w)
Dielectric constant (Er)

Results

Impedance (Zo)
For Production-Ready Precision

While our tool is excellent for estimates, exact impedance control is critical for final production. For 100% accurate results that include all manufacturing tolerances, we recommend:

  • Using Industry-Standard Software: For precise modeling, use tools like Polar Instruments or Si9000.
  • Leveraging Our Expert Engineering: Send us your design for a free DFM (Design for Manufacturability) analysis. Our engineers will calculate the final impedance values and provide you with an optimized PCB stack-up recommendation to ensure your board performs as intended.