The M3E210E5LB7 from Littelfuse is a Varistor with AC Voltage Rating 210 V, DC Voltage Rating 275 V, Clamping Voltage 545 V, Capacitance 390 pF, Temperature Operating Range -40 to 105 ºC. Tags: Through Hole. More details for M3E210E5LB7 can be seen below.