ROV10H101K-S

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Transient Voltage Suppressors (TVS) can be divided into two categories, Varistors and Metal Oxide Varistors (MOVs). ROV10H101K-S has diverse applications and operates based on different principles between the two types.

ROV10H101K-S is a type of Varistors, also known as Voltage Dependent Resistors (VDRs). It is a two terminal semiconductor device manufactured from ceramic material filled with zinc oxide grains, which is then subjected to a voltage forming process. Under normal conditions, varistors have a large resistive value. But when the voltage applied to the device increases to its breakdown voltage (VBR), the varistor exhibits a low resistive value. In this way, voltage spikes or high energy pulses are diverted away from sensitive equipment and the varistor protects against damage or malfunctions.

ROV10H101K-S can be used in various applications from consumer electronics and automotive to industries involved in the production of telecommunications, medical, or defense equipment. It can protect against ESD, surges, voltage spikes, and lightning-induced transients. Thus, it enables a reliable and safe operation for a wide range or products.

Varistors also differ from MOVs in their operation, since it uses a different principle to achieve the protection against transients. MOVs utilizes the principle of Joule heating, which happens when voltage flows through the moving resulting in current flow. As current flows, heat is produced and if the temperature increase is higher than the material’s melting point, an electrical arc is formed, which effectively reduces the voltage. Compared to varistors, MOVs are more suitable for power applications and thus, are most typically used in power supplies and motor controllers.

Moreover, the ROV10H101K-S reverse leakage current is low and its response time is relatively fast, since the breakdown mechanism is electro-striction, which occurs when the flux lines of current become distorted. The device has a very low hysteresis, which is a measure of the dissimilarity between the device’s forward and reverse breakdown voltage. The low hysteresis ensures a consistent performance for the device and thus it is ideal for applications such as power supplies, automotive, medical, and consumer electronics.

To summarize, ROV10H101K-S is a Varistor, which can be used in a wide array of applications and exhibits low hysteresis and reverse leakage current. The device works according to the electro-striction breakdown principle where the flux lines of current become distorted when the voltage exceeds, its breakdown voltage. Varistors are also different from MOVs in their operation, since it uses a different principle to achieve the protection against transients.

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