Parallel Wire Impedance

Calculate the parallel wire impedance, inductance, capacitance, and propagation delay using this online electrical calculator.

Use this online calculator to determine the impedance, inductance, and propagation delay of parallel wires in an electrical circuit. Simply enter the diameter, dielectric constant, and separation values to obtain the desired results.

Wire separation
mm
Wire diameter
mm
Relative dielectric constant
mm
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    5 Number of calculations

    The formulas in KaTeX syntax with corresponding descriptions are as follows:

    Zo = \frac{{120}}{{\sqrt{{\text{{er}}}}}}\cdot\operatorname{acosh}\left(\frac{{s}}{{d}}\right)

    – Zo: Characteristic Impedance
    – er: Relative Dielectric Constant
    – s: Separation Value
    – d: Diameter Value

    Tpd = 3.333 \cdot \sqrt{{\text{{er}}}} \cdot \text{{dimension}}

    – Tpd: Propagation Delay
    – er: Relative Dielectric Constant
    – dimension: Dimension Value

    C = Tpd \cdot Zo

    – C: Capacitance
    – Tpd: Propagation Delay
    – Zo: Characteristic Impedance

    L = \frac{{C}}{{1000}}

    – L: Inductance
    – C: Capacitance

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