2381 574 11403

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

TVS – Varistors, MOVs

Varistors, also known as metal oxide varistors (MOVs), are components designed for use in electronic circuits. The MOVs are made up of sintered zinc oxide pellets that are connected in parallel between two contact plates. The pellets are formed from a combination of ceramics and metal oxide, which are then hot-pressed together and then sintered. The current-limiting characteristics of the MOVs are determined by the Varistor Voltage Rating of the component selected, which is based on the size and resistance of the pellets used in its construction.

2381 574 11403 Varistors have applications in many different areas of electronic technology. They can be used in voltage regulation, surge protection, and EMI (electromagnetic interference) suppression. In voltage regulation, MOVs provide a second form of protection, in addition to using a fuse, for electronic systems to protect them from voltage spikes that can occur. In surge protection, MOVs are used in power supplies and UPS (uninterruptible power supply) systems to protect them from damage caused by transient high voltage events.

MOVs are useful in EMI suppression as they can be used to reduce the disruptive effects of radiofrequency, lightning, and other forms of interference on sensitive electronic systems. To reduce EMI, a MOV is placed across the incoming power line. When high frequency noise is detected, the MOV conducts the noise away from the input line, thus reducing the amount of interference on the line.

MOVs can also be used for AC line voltage regulation, in which they provide an alternative to AC power regulators. In this case, MOVs will sense a voltage level that is above or below a set voltage level, and will adjust the voltage level accordingly. In electronic systems, MOVs can help reduce the costs associated with high voltage control by eliminating the need for additional voltage regulators.

The MOVs provide protection against electrostatic discharge (ESD) and voltage transients. The MOVs can be installed in many ways, including in-circuit, on-cable, in-line, and other designs. They are often used in combination with fuses or resistors, which provide additional protection against overstressing the devices.

MOVs also provide overvoltage protection, as they will dissipate excess energy from an overloaded system. The MOVs are designed to absorb the energy and dissipate it over a period of time, thus protecting the device from damage. In DC voltage regulation, MOVs can be used to ensure that the voltage across a circuit does not exceed a specified level. This is accomplished by adjusting the resistance of the MOV, which will then cause a drop in voltage as the current increases.

As can be seen, MOVs are a versatile and reliable form of protection against voltage spikes, electrostatic discharge, and voltage transients. With their various applications, MOVs can be used effectively in a variety of settings, from residential to industrial. For these reasons, MOVs are an excellent choice for protection of both home and business electronics.

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