Pack of 5 – 39V, Metal Oxide Varistor Transient SuppressorAdditional Notes:* Sold in Packs of 5* Metal Oxide Varistor Transient Voltage Suppressor used to suppress spikes caused by inductive loads, lightning etc. The spike causes the MOV to change from a high impedance to low, clamping the spike.* P/N: 7D390K* Max Working Voltage: 25 Volt AC/31 Volt DC* Varistor Voltage: 35-43 Volt, 39 Volt Nominal @ 1mA* Energy: 2.1 Joules* Max Clamp Voltage: 77 Volt* Surge Amps: 250 Amp 1 Time* Dimensions (Dia x Thickness): 7.8mmx <3mmMPJA37354 MI