The TND23GF821KB00EAA0 from Nippon Chemi Con is a Varistor with AC Voltage Rating 510 V, DC Voltage Rating 670 V, Clamping Voltage 1340 V, Capacitance 800 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for TND23GF821KB00EAA0 can be seen below.