ROV20-390L-S-2

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TVS (Transient Voltage Suppressor) Varistors, MOVs (Metal Oxide Varistors) and other surge suppressors are essential components in many electronics-based applications. The ROV20-390L-S-2 is an industrial-grade surge suppressor that offers great energy performance and reliability in different applications.

This surge suppressor belongs to the series reverse-biased varistors (or TVS varistors) and it is designed for high-energy events occurring in signal and data communication systems.The most important characteristic of this surge suppressor is its low thermal resistance panel (Rov20-390L-S-2), which enables it to dissipate large amounts of power during high-energy pulses.

The surge suppressor works by absorbing the generated high-energy electrostatic or electromagnetic transients and minimizing their effect on the system. This is done by connecting the upward over-voltage transient to the ground or allowing it to bypass the working part.

The ROV20-390L-S-2 surge suppressor can withstand and block high-energy transients with a maximum clamp voltage of 540V, protecting the system from the damaging effects of transient over-volts or other high-energy EMC phenomena. Its design makes it suitable for use in a wide range of applications, such as automotive, industrial, telecommunications, laser-based systems, and many more.

The working principle of the ROV20-390L-S-2 is based on the ability of varistors to conduct in one direction, while blocking current flowing in the opposite direction. This is done through the formation of an electrostatic shield which absorbs and dissipates the excess voltage.

To protect electrical systems from transient over-voltages, the ROV20-390L-S-2 must be connected directly across the power lines of the system. When an incoming transient exceeds the varistor’s voltage breaking capacity, the device will begin to conduct and reduce the voltage across the protected lines. This will lower the stress on the system components and block potential damage.

In addition to surge suppression, the ROV20-390L-S-2 also provides additional benefits such as EMI filtering, low leakage current, and fast response times. The leakage current of this suppressor is typically very low and does not exceed 20 nA. Its response time is typically in the order of dozens of nanoseconds, which is much faster than most other varistors.

In conclusion, the ROV20-390L-S-2 surge suppressor is a highly reliable and efficient component that provides protection against electrostatic and electromagnetic transients and other high-energy EMC phenomena. It is suitable for use in a vast variety of applications, offers low thermal resistance, and has a fast response time.

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