The Songtian STE20D270K1DN0FSB0R0 is a varistor with a maximum operating voltage of 22V, a breakdown voltage of 27 (24 to 31)V, and a 2KA withstand voltage. It is constructed with a through-hole mounting, has a 10 mm pitch, and is RoHS compliant. The varistor is able to provide powerful protection from electrical surges, current leakage, and other instances of overvoltage. It is suitable for a variety of applications such as automotive, industrial, and commercial electrical equipment.