The B72540V350K62 is a leaded varistor from EPCOS (TDK), designed for overvoltage protection. It belongs to the ThermoFuse varistor series and offers reliable protection against transient overvoltages in various applications. This varistor features a high surge current capability and a wide operating voltage range, making it suitable for protecting sensitive electronic equipment from damage caused by voltage spikes.

Applications

• Power supplies
• Household appliances
• Industrial electronics
• Telecommunications equipment
• Lighting systems

Features

• High surge current capability up to 4 kA
• Wide operating voltage range: 350 Vrms
• UL 1449 recognition
• RoHS compliant
• ThermoFuse varistor for enhanced safety
• Leaded varistor with coating

Benefits

• Provides reliable overvoltage protection
• Protects sensitive electronic equipment from damage
• Enhances the safety of electrical circuits
• Helps prevent equipment downtime and repair costs
• Complies with industry safety standards

Technical Specifications

The B72540V350K62 has a maximum surge current capability of 4 kA (8/20 µs pulse), a typical capacitance of around 190 pF, and an operating temperature range of -40°C to +85°C. The varistor voltage is typically around 560V at 1mA. The clamping voltage at 25A is around 800V. The device is leaded and designed for through-hole mounting. The ThermoFuse feature provides additional protection by disconnecting the varistor from the circuit in the event of a sustained overvoltage condition. The coating material is flame-retardant epoxy resin.