The B72220S0441K101 varistor is a through hole type component, compliant with the RoHS regulatory standard, manufactured by TDK. It has a rated voltage of 440V, a rated energy of 715J (643.5 to 786.5), and a surge current of 8KA. It is intended for use in surge suppression circuits, as it is designed to reduce the effects of high voltage and current transients. It is suitable for use in a variety of products, such as home and office equipment, telecommunications, automobiles, and a range of industrial equipment.