V120ZU4PX2855

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The V120ZU4PX2855 is a varistor device, made to protect against high voltage and spikes. Varistors are designed to protect sensitive electrical components from these surges by “shunting” the excess electricity away from the application and into the ground. Varistors are also sometimes referred to as “Movement Overload Voltage Suppressors” (MOVs).

Application Field and Working Principle

The V120ZU4PX2855 is designed to meet the needs of applications such as medical or military equipment, industrial and office automation, and telecommunications. Its maximum peak current rating of 120 A makes it suitable to handle the most demanding surge requirements. This device prevents overvoltage conditions in the application, allowing for a greater level of system reliability.

The V120ZU4PX2855 works by storing electrical energy and releasing it when an overvoltage event occurs. This is done through a redirected flow of electrons along the internal structure of the device. This is achieved by utilizing metal oxide varistors (MOVs) combined with a capacitor. The MOVs store the excess energy within their structure by allowing current to flow through the device in a circular path. This activity creates a magnetic field that is released into the air when an overload occurs.

The capacitor works in tandem with the MOVs to control and dissipate the residual energy. This occurs when a current passes through the capacitor’s gap, which causes the capacitor to store the energy and then release it later. This combination of MOVs and the capacitor helps to reduce or eliminate any noise and voltage disruptions in the system.

The V120ZU4PX2855 also features an avalanche diode, designed to trigger in the event that the current reaches a certain predetermined level. The avalanche diode is essentially a switch which will cause a significant reduction in the current, allowing for the prevention of any damage caused by an overload situation.

In addition to its surge protection capabilities, the V120ZU4PX2855 features a built-in filter for EMI/RFI noise suppression. This helps protect the application from any external Noise. The device also offers a wide range of operating temperatures, from -20°C to +85°C, allowing for use in extreme weather conditions.

Conclusion

The V120ZU4PX2855 is an excellent solution for protecting against overvoltage and surge events. It utilizes a combination of a MOV and capacitor to store and release the excess energy, in addition to the avalanche diode for a quick response. The built-in EMI/RFI filter is also a great feature, helping to shield the application from unwanted noise. The device offers a wide range of operating temperatures, making it suitable for a variety of applications.

The specific data is subject to PDF, and the above content is for reference