ISOM5-420-B-L2 is a hybrid protection component from Bourns' IsoMOV® Series that combines metal oxide varistor (MOV) and gas discharge tube (GDT) technologies into a single device. It features a maximum continuous operating voltage (MCOV) of 420 V RMS (560 V DC), nominal capacitance of 40 pF at 20 kHz, and operating leakage less than 10 µA at MCOV. The device delivers exceptional surge protection with 5,000 operations at 10 kA and 10,000 operations at higher surge levels, achieving a maximum clamping voltage of 1100 V at 100 A. With in-line lead configuration (L2), lead spacing of 7.5 mm, and wire diameter of 0.8 mm, this component is ideally suited for premium AC and DC power protection applications where space savings, low leakage, and superior energy handling density are critical requirements.