ROV20H101K-S-2

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Varistors are unique electronic components with the ability to withstand too high voltage and current surges. ROV20H101K-S-2, which is manufactured by Vishay, is a 20V varistor with a high maximum energy absorption rating. This component also features excellent electrical stability and low thermal degradation.

ROV20H101K-S-2’s primary application field is utilizing it for protecting against surges, transients and lightning in automotive power trains and various electronics/electromechanical circuits. It can also be used to protect AC as well as DC operated systems from numerous voltage and current sources across various commercial and industrial applications. This component’s high surge current capability further ensures that it can be used to mitigate the effects of long duration arcs or multiple short duration arcs.

The working principle of ROV20H101K-S-2 revolves around the generation of a voltage dependent resistance. This resistance is present between the two metal electrodes of the component, and it varies with the amount of applied voltage. When connected in series to the electrical/electronic system, the device starts conducting current when the voltage applied to it exceeds a certain predetermined level. It subsequently offers low resistance between the electrodes, limiting the voltage applied to the system to a safe level. In addition to this, an inductance is often connected in parallel with it to further enhance the surge protection of the system.

ROV20H101K-S-2 also features a high thermal degradation and excellent electrical stability. This ensures that the components don’t suffer from frequent changes in the resistance with variations in temperature, thereby delivering the required protection to the circuits flawlessly. Furthermore, the component also features a high dissipation ratio which aids in dissipating the excessive energy, thereby preventing it from significantly damaging the system.

In conclusion, ROV20H101K-S-2 can be an ideal option for providing surge protection to numerous AC as well as DC operated systems across automotive power trains and commercial/industrial applications. Its excellent electrical characteristics, high energy absorption rating and excellent thermal stability makes it a reliable and robust component, delivering safe and reliable protection to circuits in a wide range of demanding applications.

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