TDK Metal Oxide Varistor, 300V AC, 76J, Disc 14mm

The TDK Metal Oxide Varistor is a high-performance surge protection component designed for robust and reliable operation in demanding industrial environments. As part of the B722 Standard series, this leaded varistor features a UL94V-0 flame-rated epoxy resin coating, ensuring excellent fire safety and durability. Its construction allows for no derating up to an ambient temperature of 85°C, maintaining consistent performance under thermal stress.

Certified to major international safety standards, including UL, CSA, VDE, CQC, and IEC, this component guarantees compliance and reliability for critical applications. It offers an operating temperature range from -40°C to 85°C and has proven endurance of 1000 hours at 85°C with ±10% relative humidity. The device provides precise voltage clamping with a choice of ±10% or ±5% varistor voltage tolerance, allowing for design flexibility and accuracy.

With a peak surge current handling of 4.5kA (8/20µs) and a high peak energy absorption of 76 joules (10/1000µs), it effectively suppresses transient voltage spikes, protecting sensitive electronic equipment. The disc-style 14mm varistor element delivers a maximum clamping voltage (Vc) of 775V, with ratings of 300V AC and 385V DC.

Key Features

• High Energy Absorption: 76J peak energy rating for superior surge protection.
• Robust Construction: Metal oxide varistor (MOV) with flame-retardant epoxy coating (UL94V-0).
• Wide Temperature Range: Reliable operation from -40°C to 85°C.
• High Surge Current: Withstands 4.5kA peak surge currents.
• International Approvals: UL, CSA, VDE, CQC, and IEC certified for global use.

This TDK varistor is an essential component for enhancing system resilience against electrical transients, ensuring the longevity and safety of industrial and electronic installations.