ROV20H390L

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ROV20H390L Application Field and Working Principle

The ROV20H390L is an Overvoltage Suppressor (OVP) manufactured by Vishay, part of the ROV20H family of transorb and varistors. These transorb varistors are used for providing overvoltage protection to sensitive circuits in a range of applications, such as automotive and industrial electronics. Below is a detailed overview of the application fields and working principle of the ROV20H390L.

Application Field

The ROV20H390L is designed for application in automotive, consumer, industrial, and multimedia electronics. In particular, this transorb varistor is designed for use in applications where overvoltage protection is needed for sensitive electronics, such as automotive engine control systems, and consumer appliances. It is also suitable for applications such as remote car entry systems, computer systems, chargers, telecom network systems, and High-Definition Multimedia Interface (HDMI) systems.

Working Principle

The main function of the ROV20H390L is to protect sensitive circuits from overvoltage surges. It works by absorbing and dissipating energy that is produced by incoming overvoltage surges. When exposed to an overvoltage surge, the varistor’s Zener diode becomes active and limits the voltage across the sensitive circuit. This protects the circuit from damage that may be caused by the surge. Once the incident has passed, it automatically returns to its normal operating state.

The ROV20H390L also has the ability to self-heal after experiencing a surge. This allows the varistor to provide reliable protection without the need for any external circuitry. It is also a small and lightweight component, making it ideal for use in applications where space is limited.

Conclusion

The ROV20H390L is a transorb varistor from Vishay’s ROV20H family. It is designed for use in automotive, consumer, industrial, and multimedia applications, primarily for providing overvoltage protection to sensitive circuits. Its working principle involves absorbing and dissipating energy from incoming surges, and it is also able to self-heal after being exposed to a surge. These features make the ROV20H390L a reliable and effective solution for providing protection for sensitive circuits.

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