The TND20V-511KB00AAA0 from Nippon Chemi Con is a Varistor with AC Voltage Rating 320 V, DC Voltage Rating 410 V, Clamping Voltage 845 V, Capacitance 1100 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for TND20V-511KB00AAA0 can be seen below.