TDK B722 StandarD Series Varistor 8.2J 250V ac

The TDK B722 StandarD Series Varistor is a round-shaped, radial-leaded metal oxide varistor (MOV) designed for robust transient voltage protection in a wide range of electronic circuits. With a broad operating voltage range from 11V RMS to 1100V RMS, this component is suitable for diverse applications, ensuring reliable performance under varying electrical conditions.

This varistor features high surge current ratings of up to 8 kA and a peak energy range from 0.3 J to 410 J, effectively safeguarding circuits against excessive transient voltages. Its voltage-dependent characteristics enable rapid response to high-voltage spikes, providing optimal protection for sensitive equipment. The device is approved by UL, CSA, VDE, CQC (S05/07, S10/S14, S20), and IEC, confirming its compliance with international safety standards.

Designed for durability, the varistor has an operating temperature range of -40°C to 85°C and can withstand endurance testing of 1000 hours at 85°C. Available with ±10% and ±5% voltage tolerances, it offers flexibility for precise circuit design. The component is housed in an epoxy resin coating with a UL94V-0 flame retardant rating, ensuring safe operation in high-temperature environments.

Key Specifications

• Voltage Rating (VAC): 250V
• Voltage Rating (VDC): 320V
• Clamping Voltage (Vc Max): 650V
• Varistor Case Style: Disc 5mm
• Varistor Type: Metal Oxide Varistor (MOV)
• Peak Surge Current @ 8/20µs: 400A
• Peak Energy (10/1000µs): 8.2J
• Operating Temperature Range: -40°C to +85°C
• Part Number: B722 (StandarD Series)

This varistor is ideal for industrial and safety applications, providing robust and reliable transient voltage suppression to protect critical electronic systems.