The 20D820K with Varistors Through Hole RoHS by Hongzhi is a radial leaded electronic component used to protect sensitive circuits. It has an operating voltage of 800V, a capacitance of 8,200pF, and a total dissipation of 0.75W. It is RoHS (Restriction of Hazardous Substances) compliant, and features a variety of possible mounting configurations for use in both commercial and industrial applications. The 20D820K provides excellent protection for circuits against over-voltage and surge currents while requiring minimal space.