VM155MK122R040P120

The VM155MK122R040P120 is a surge protector designed for maximum protection against spikes and other electrical overvoltage events. It is one of the many types of surge protectors manufactured by VM Components and is widely used in a myriad of applications. This surge protector type is classified as TVS - Varistors, MOVs, and is characterized by a prolonged surge protection time, meaning that it will tolerate higher amounts of surge current before beginning to degrade in performance.

In terms of its application field, the VM155MK122R040P120 is primarily used in sensitive electronic circuits, such as computer networks and control systems, which require a high level of surge protection. This type of surge protector is also suitable for use in lighting and other residential applications, thanks to its simple yet effective design.

The working principle of the VM155MK122R040P120 is simple and effective: When an electrical surge is detected on the line that it is protecting, the device rapidly starts to shun the surge current from the protected circuit. The device is able to provide this surge protection through the use of two main components, the Varistor and the MOV.

The Varistor is the main element of the VM155MK122R040P120, and is used to provide single-line protection for the application. It works by quickly clamps the line voltage at a certain level when an exceptional surge is sensed on the line. This helps reduce the voltage difference that may exist between the connected circuit and the supply.

On the other hand, the MOVs (Metal Oxide Varistor) is also present in the VM155MK122R040P120 and provides an additional layer of protection against voltage spikes that may exceed the Varistor\'s ability to protect the line. This component works by quickly reacting to overvoltages, and absorbs the energy from the surge and dissipates it, thereby helping to protect the connected circuit from being damaged by the power surge.

In conclusion, the VM155MK122R040P120 is an important type of surge protector designed for use in sensitive, electronic circuits, and its two main components, the Varistor and the MOV, make it an effective device in providing adequate power protection for the connected circuit.