ROV07H820K-2

The ROV07H820K-2 is a Varistor, that is part of a group of protective electronic devices known as TVS (Transient Voltage Suppression). It is designed to guard against transient overvoltages and protect any sensitive electronic equipment from electrical impulses caused by lightning and other sources. The acronym MOV is also frequently used to refer to this type of device.

Application Field

The ROV07H820K-2 is adapted to protect sensitive electronic components and circuitry from electrical impulses caused by lightning and other sources overvoltage. It is mainly used for automotive and industrial applications. The ROV07H820K-2 is suitable for variable DC voltage applications, including use in on-board computer systems, electrical automotive systems, and other automotive applications like ignition systems, fuel injectors, and emission control systems.

Working Principle

Varistors, like the ROV07H820K-2, are protection devices consisting of a semiconductor material that acts as a voltage-dependent resistor. The ROV07H820K-2, is made of the zinc oxide material, a non-linear element. This element has the ability to conduct an electric current if the voltage is greater than its own breakdown voltage. When surges or spikes of voltage occur, the Varistor will automatically conduct the current towards the ground, allowing only the safe and acceptable voltage to pass, and absorbing all overvoltage.

The nonlinear element allows the ROV07H820K-2 to have a wide range of voltage transient protection. It will then switch on and discharge the excessive energy to the ground, thus destroying the overvoltages and helping to protect devices and circuits from being damaged. This process is normally referred to as clamping or clamping down.

The ROV07H820K-2 device is easy to install, reliable and designed for safety, making it perfect for protecting a variety of automotive and industrial applications from electrical impulses such as lightning and surges, or any other application requiring a protective device.