TDK MT40 Thermofuse Varistors

Introduction

The TDK MT40 Thermofuse Varistors, manufactured by EPCOS / TDK, are advanced protective components designed to safeguard electrical circuits from voltage surges. With their robust specifications and unique features, these varistors are essential for various applications in power management and telecommunications.

Part Description

The TDK MT40 Thermofuse Varistors operate within a DC voltage range of 200V to 750V and an AC voltage range of 150V to 550V. They are capable of handling high peak surge currents of up to 50kA, making them suitable for demanding environments. A key feature of this series is the normally open micro-switch, which allows for remote indication and monitoring of circuit conditions. The varistors are compact, flame-retardant, and designed with a patented over-molding for enhanced durability. They comply with RoHS standards and are recognized under UL1449 as a type 1CA for both AC and DC applications.

Applications

• Inverters
• Industrial power supplies
• Outdoor lighting systems
• Telecommunication systems
• Surge protection devices (SPDs)

Industries

• Electronics
• Telecommunications
• Renewable energy
• Industrial automation
• Lighting solutions

Usage Ideas

1. Surge Protection in Inverters: Integrate the MT40 varistor into a solar inverter system to protect against voltage spikes caused by lightning or grid fluctuations.
2. Telecommunication Equipment: Use the varistor in telecommunication systems to safeguard sensitive components from transient voltage surges, ensuring reliable communication.
3. Outdoor Lighting Control: Implement the MT40 in outdoor lighting systems to provide surge protection and remote monitoring capabilities, enhancing safety and efficiency.

Conclusion

The TDK MT40 Thermofuse Varistors are a vital component for protecting electrical systems from voltage surges. Their high surge current capacity, compact design, and remote monitoring features make them ideal for a wide range of applications across various industries. By incorporating these varistors into your projects, you can enhance the reliability and safety of your electrical systems.