The ZVX 14 S 0603 300 from Bourns is a Varistor with AC Voltage Rating 14 V, DC Voltage Rating 18 V, Clamping Voltage 40 V, Capacitance 110 pF, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for ZVX 14 S 0603 300 can be seen below.