TDK Epcos B722 20mm Disc Varistor, 195J, 460V ac, 615V dc

The TDK Epcos B722 is a round, radial-leaded metal oxide varistor (MOV) designed for reliable transient voltage protection. As part of the Standard series, it offers a wide operating voltage range, making it a versatile component for safeguarding electronic circuits from damaging voltage spikes. Its voltage-dependent characteristics allow it to clamp excessive transient voltages, providing optimal operating conditions and protecting sensitive components.

This varistor features a high surge current rating of up to 8kA and a peak energy absorption of 195J, ensuring robust protection against high-energy electrical surges. It is constructed with a flame-retardant epoxy resin coating that meets the UL94V-0 standard, enhancing safety and durability. The component is approved by major international standards bodies including UL, CSA, VDE, CQC, and IEC, guaranteeing compliance for use in regulated environments.

Suitable for a broad spectrum of industrial and safety applications, the Epcos B722 operates reliably across a temperature range of -40°C to 85°C. It has been endurance-tested for 1000 hours at 85°C and offers precise varistor voltage tolerances of ±10% and ±5%. This combination of high-performance specs and rigorous certification makes it an essential protection element in power supplies, control systems, and other critical electronic assemblies.