The VDRUS10T510xyE from Vishay is a Metal Oxide Varistor that is ideal for over-voltage and transient voltage protection applications. It requires an AC voltage rating of 510 V and a DC voltage rating of 670 V and has a clamping voltage of 1355 V. This varistor consists of a low β high-purity zinc oxide disc coated with high temperature-resistant Silicone. It can withstand ultra-high current surges with a size ratio capability of up to 13 kA for US20 models. This VDE-certified varistor is available in a through-hole package that measures 39.5 x 12.5 mm.