ROV10-781K-2 Circuit Protection

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Transient Voltage Suppressors (TVS) are available in various types offering a variety of features such as high surge capacity, low resistance, high insulation resistance, and fast response time. Varistors, Metal Oxide Varistors (MOVs) and ROV10-781K-2 are members of this family. This article provides an overview of ROV10-781K-2 application fields and working principle.

ROV10-781K-2 Application Fields

ROV10-781K-2 is a transient voltage suppression (TVS) device which is used to protect a wide variety of electronic systems from damage or malfunction due to electrical transients. It is used in automotive, industrial, telecom and medical applications.

ROV10-781K-2 is also used in data systems and consumer electronics to protect against overvoltages due to lightning. It is often employed in circuit designs for surge protection. In Industrial application, it ensures reliable operation of electrical circuits and electronic components by limiting transient overvoltage due to switching transient, load dump, and other sources.

In Telecommunication, ROV10-781K-2 devices are used to protect against lightning strikes as well as momentary power changes and line transients on data systems and communication networks.

ROV10-781K-2 Working Principle

The ROV10-781K-2 works on the principle of voltage dependent resistance. It is a nonlinear, multilayer ceramic element which acts as a forked metal oxide varistor (MOV) when exposed to transient overvoltage. It exhibits a low dynamic resistance at low voltages, which changes rapidly at higher voltages. This rapid change in resistance serves as a protection to prevent further leakage of current across the element.

The ROV10-781K-2 is designed to provide effective protection against fast transients, such as those resulting from lightning, and can absorb high currents (>500 Amps). It is capable of dissipating large surges of energy in an extremely short time. It offers low capacitance which helps in reducing the clamping effect, and provides superior thermal stability of voltage derating behavior.

In normal, non-transient conditions, the ROV10-781K-2 has a low dynamic resistance allowing limited current flow. When the device is exposed to a surge, the dynamic resistance increases rapidly to protect the circuit by forming an insulating barrier. This rapidly changing dynamic resistance also serves to reduce or eliminate circuit damage caused by the transient.

Conclusion

ROV10-781K-2 is a member of Transient Voltage Suppressors (TVS) family. It has a wide application field and is suitable for use in automotive, industrial, telecom, and medical applications. This type of device is designed to provide effective protection against fast transients and can absorb high currents. It works based on the principle of voltage dependent resistance and is capable of dissipating large surges of energy in an extremely short time.

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