320VAC - 510VDC 20mm Varistor 20D511K is a highly reliable electronic component designed to protect sensitive devices from voltage spikes and surges. With its unparalleled ability to handle up to 320VAC and 510VDC input, this 20mm Varistor is perfect for a wide range of electronic applications. This varistor acts as an efficient surge protector by clamping voltage levels to a safe range, ensuring the longevity and reliability of your electronic equipment. Engineered with durability and precision, the 20D511K offers excellent transient voltage suppression, making it an indispensable component for modern electronic systems.