The 07D220K Varistor 18V 22 (18.7~26) 48V 250A Through Hole RoHS is a device manufactured by COV. It is a Metal Oxide Varistor (MOV) that is a two-terminal non-linear resistor. This part can clamp transients to a safe voltage level over a wide voltage range. The varistor has a maximum working voltage of 18V, clamping voltage of 22 volts (18.7~26), and a maximum power rating of 48V 250A. It has a long life and reliable performance, and is compliant with the RoHS directive for using lead-free materials. It is designed for surface mount applications and incorporates a through hole mounting.