The Via Impedance Calculator uses the physical dimensions of a via to calculate its capacitance, inductance, and impedance

Sierra’s Calculators and Other Tools
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Features of the Via Impedance Calculator

  1. You can choose from two different via models (through-hole, and laser via models). Each of these models has four via structures.

  2. It calculates capacitance, inductance, characteristic impedance, propagation delay, propagation delay per unit length, and effective dielectric constant of the selected via model.

  3. The units of the input parameters can be changed among mils, centimeters, millimeters, and inches.