The 820553811 from Wurth Elektronik is a Disk Varistor. It has an AC voltage rating of 385 V, a DC voltage rating of 505 V, and a clamping voltage of 1050 V. This varistor can withstand a peak pulse current of 400 A and has a low power dissipation of 0.1 W. It offers excellent absorption at surge impulses and operates from -40°C to +105°C. This RoHS-compliant varistor is available in a through-hole package that measures 32.5 x 7.5 mm and is ideal for 12-48 VDC distribution and 110-400 V power supplies.
