Inrush Current Limiter Calculator

Design NTC-based inrush current limiters. Calculate energy, resistance, and steady-state losses.

Input Voltage V_in (V)

Bulk Capacitance C_bulk (μF)

NTC Resistance @25°C (Ω)

Max Steady Current (A)

Ambient Temperature (°C)

Max Inrush Current (A)

Energy: E = ½CV_pk²

R_min: R = V_pk/I_{inrush_max}