ROV07-270K-S

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TVS (Transient Voltage Suppressors), MOVs (Metal Oxide Varistors) and ROVs (Relatively Overvoltage Protectors) are three important categories of electronic protection components. Among them, ROV07-270K-S is a typical high voltage relative overvoltage protection device. This article mainly introduces its application field and working principle.

Application field of ROV07-270K-S

The components of ROV07-270K-S series include ROV07-270K-S01, ROV07-270K-S02, ROV07-270K-S04 and ROV07-270K-S08, which are designed for circuit protection. ROV07-270K-S is suitable for 350V dc or ac applications. This series of products is mainly used in overvoltage protection of automotive electronic components. But it can also be widely used in communication systems, electric toys, security and monitor systems, and other fields.

Working principle of ROV07-270K-S

When the current overvoltage and the corresponding surge amplitude do not exceed the rated voltage level, the ROV07-270K-S does not work and exists in the off state. At this time, the current will bypass the device naturally. When the surge amplitude increases to the rated voltage level, the semiconductor junction inside the ROV07-270K-S will be turned on, and its internal resistance will suddenly drop from the high impedance resistance at the off state to the low impedance at the on state. Under this state, a relatively low voltage drop will be generated in the device, forming a voltage protection barrier, which can effectively limit the current flowing through the load and protect the load from being damaged by overvoltage and overload. When the surge amplitude decreases to the reset voltage threshold of the device, the voltage drop in the circuit disappears, the device will be turned off, and the voltage protection barrier will be destroyed. So the ROV07-270K-S can continuously protect the circuit from overvoltage.

Conclusion

To sum up, ROV07-270K-S is a suitable relative overvoltage protection device with wide application fields. Its working principle is that when the voltage exceeds the rated voltage level, it will form a voltage protection barrier so as to protect the load from being damaged by overvoltage and overload.

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