TVS - Varistors, MOVs

ROV07-220L-S-2 is a unipolar varistor, which is one of the most commonly used voltage surge protection devices. It can be used to protect sensitive electronic components from over or undervoltage. This type of device can also reduce electromagnetic interference, limit surge voltage, and protect against contact or neutral arc faults.

A varistor, also known as a voltage dependent resistor (VDR), is an electronic component made up of a semiconductor material and two metal plates. When a voltage is applied to the metal plates, the varistor\'s resistance changes in response to the voltage. When the voltage increases, the varistor\'s resistance increases, and vice versa. Varistors are typically used to protect against overvoltages or short circuits.

ROV07-220L-S-2 Application Field and Working Principle

ROV07-220L-S-2 varistors have a wide range of applications. In addition to voltage surge protection, they can be used as circuit breakers, current limiters, overvoltage protection, or overcurrent protection devices. They can also be used as switching devices for circuit ON/OFF control. The ROV07-220L-S-2 varistor is specifically designed for AC applications up to 220V. It is also well suited for overvoltage protection of household electronics, communication equipment, computers, motors, and industrial controllers.

The working principle of the ROV07-220L-S-2 varistor is based on the fact that it is a voltage-dependent resistor. When a steady-state voltage is applied across the terminals, the varistor\'s resistance is low and allows the current to flow through the device. When a surge voltage is applied to the terminals, the varistor\'s resistance increases suddenly, which limits the current through the device and protects the circuit from overvoltage.

Conclusion

ROV07-220L-S-2 varistors are used in many different applications to provide overvoltage protection and ensure the safety of sensitive electronic components. The ROV07-220L-S-2 varistor is typically used in AC applications up to 220V. The varistor works by increasing its resistance in response to high voltage surges, thereby limiting the current and protecting the circuit from overvoltage.