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.

Reference (V) (V)

Required number input.

Reference Current (A) (A)

Required number input.

Pulse Current (A) (A)

Required number input.

Nonlinearity Exponent

Required number input.

Estimate MOV clamping voltage at a specified current from a calibrated power-law V–I curve V=Vref(I/Iref)^(1/alpha); alpha must come from device data. 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]

Clamping (V) (V)

The resulting clamping (v) returned as a number.

• TVS, varistor, and Zener protection depends on surge waveform, source impedance, clamping current, dynamic resistance, parasitic inductance, temperature, repetition, energy rating, tolerance, and degradation. Nominal voltage is not the protected-node peak.
• 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.

• TVS Peak Pulse Power

  Calculate peak transient-voltage-suppressor pulse power as clamping voltage multiplied by peak pulse current at the same point on the device curve.

• Esd Clamping Voltage

  Estimate ESD protection clamping voltage with a fitted dynamic-resistance model V=Vbr+I Rd; use device pulse-current data for the chosen waveform.

• Opamp Short Circuit Power

  Estimate output-stage dissipation during an op-amp short to ground as supply-to-short voltage magnitude times the measured short-circuit current; this is not total device power.