TMOV20R200M

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TVS – Varistors,MOVs, are devices used in the electronic circuit which interrupts and dissipates high voltage pulses. These circuits help to provide protection against damages caused by sudden power surges or transients. TMOV20R200M is a special voltage-dependent resistive element with specific application field and working principle.

TMOV20R200M draws its name from its metal-oxide varistors (MOVs) and its resistance load – 20 kilo-ohms with peak pulse current 200A. It is designed for power, data and telephone line protection, switching power supplies, industrial control equipment, and other electronic models. TMOV20R200M is suitable for primary protection and secondary delay protection. It is compliance with international safety standards UL 1449 Edition 4 and CSA C22.2 NO. 199.2-13.

Working Principle

TMOV20R200M works by utilizing the metal-oxide varistors (MOVs). These MOVs devices used in the electronic circuit are made up of two electrodes, one negative and one positive. When exposed to any kind of high voltage, the MOVs component lead to the metal-oxide material to compress, decreasing in resistance and increase in voltage.

When the high voltage reaches a certain peak value, the MOVs component leads to the resistor coil, which is then subjected to move fat motion and it reduces the voltage across the entire circuit. This way, the surge energy is soaked up, functioning as a protective circuit. In order to further protect the circuit, TMOV20R200M also includes a thermal cut-off fuse which melts at certain temperature and disconnects the circuit from the input power.

Advantages

TMOV20R200M provides many advantages over other voltage-dependent resistive elements. It relies on metal-oxide varistors which are light weight and low cost. TMOV20R200M also offers a wide operating temperature range of -40 to +85 degrees Celsius. This device does not require any external devices like FETs, diodes or temperature sensitive resistors to control the surge current. This helps to reduce the complexity of the circuit. Moreover, TMOV20R200M also offers protection against power surges, transients, and other high-voltage spikes, keeping the device and circuit safe from damages.

Disadvantages

Although the TMOV20R200M offers many advantages, there are some disadvantages that comes along with it, such as its limited temperature range and a reduced lifespan due to energy dissipation. The TMOV20R200M is limited to a temperature range of -40 to +85 degrees Celsius and has a reduced lifespan due to energy dissipation when subjected to high voltage.

Conclusion

TMOV20R200M is a voltage-dependent resistive element which provides protection against power surges, transients, and other high-voltage spikes. It draws its name from its metal-oxide varistors (MOVs) and its resistance load – 20 kilo-ohms with peak pulse current 200A. TMOV20R200M relies on metal-oxide varistors which are light weight and low cost. However, it has a limited temperature range and a reduced lifespan due to energy dissipation when subjected to high voltage. It is suitable for primary protection and secondary delay protection and complies with international safety standards UL 1449 Edition 4 and CSA C22.2 NO. 199.2-13.

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