TDK B722 Series Metal Oxide Varistor, 21J 275V ac

The TDK B722 Series radial leaded varistors are round, metal oxide varistors (MOVs) designed for robust circuit protection and compensation. These components offer a wide operating voltage range, making them versatile for various industrial and safety applications where reliable overvoltage suppression is critical.

Their voltage-dependent characteristics allow them to act as a shunt, clamping excessive transient voltage spikes and safeguarding sensitive electronic components from damage. With high surge current ratings and a significant peak energy absorption capability, this 21J model provides a dependable defence against electrical surges and transients.

Key Features & Applications

• Certified to international safety standards including UL, CSA, VDE, and IEC, ensuring compliance and reliability in professional installations.
• Constructed with a flame-retardant epoxy resin coating rated UL94V-0, enhancing safety and durability.
• Designed for a broad operating temperature range from -40°C to 85°C, with an endurance rating of 1000 hours at 85°C, guaranteeing stable performance in demanding environments.
• Available with precise varistor voltage tolerances of ±10% or ±5% for circuit design accuracy.

These varistors are ideal for use as control or compensation elements, helping to establish optimal operating conditions within a circuit while providing essential protection against voltage transients.