The Liown designed 911KD20 with ROHS (Restriction of Hazardous Substances Directive) certification is a radial-leaded varistor with 1.5kV of rated voltage, 1W of power dissipation, 310J of surge energy, a capacitance of 440pF at 1kHz, 745V of clamping voltage, 550V of testing voltage, 910V of let-through voltage, and 6.5kA of typical current. It is suitable for use in applications that require protection against transient overvoltages, such as power supplies and motors.