Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Mutual inductance (H)

Required number input.

Inductance L1 (H)

Required number input.

Inductance L2 (H)

Required number input.

Calculate the coupling coefficient of two coupled inductors. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Coupling coefficient

The resulting coupling coefficient returned as a number.

• Compact electronics formulas omit some combination of tolerances, temperature drift, bandwidth, loading, parasitics, noise spectrum, nonlinearity, clipping, calibration, layout, and device-specific limits. Typical datasheet values are not guaranteed limits.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Mutual Inductance

  Calculate the mutual inductance of two coupled inductors.

• GaN HEMT Rds On Tempco

  Calculate average GaN HEMT on-resistance temperature coefficient as percent change per Celsius degree between two measured temperatures; this is not a local derivative.

• Parallel Inductors

  Calculate the total inductance of two inductors connected in parallel.