ROV14H221K-S-2

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TVS - Varistors, MOVs are considered the most widely used surge protection components. And ROV14H221K-S-2 is one of the most common and popular surge protection devices. This article looks at the application field and working principle of ROV14H221K-S-2.

The ROV14H221K-S-2 Varistor is a device that provides surge protection on direct current, alternating current, and data lines. It is used to protect against electrical surges such as lightning strikes, power line surges, and electromechanical transients. The varistor has a peak current rating of 15kA and a maximum voltage rate of 2200V.

ROV14H221K-S-2 is mainly used in power supplies, telecom equipment, battery charger, instrumentation, and control systems. It is also used to protect chargers, disc players, power inverters, lighting decoders, audio systems, electronic toys, anti-theft systems, microcomputers, and other electronic products, making them robust against overvoltages.

In operation, the varistor functions as a voltage-dependent resistor by diverting high-energy transient currents and limiting sustained overvoltage. When the applied voltage is below the varistor\'s rated voltage, it acts as an open circuit, allowing the current to pass freely without any interference. Above the varistor rating, it gradually decreases its resistance so that maximum voltage is always limited.

The working principle of the ROV14H221K-S-2 is fairly straightforward. It is an electronic component made up of metal-oxide plates piled with multiple layers. The layers are separated by a ceramic dielectric material that allows the varistor to operate at higher voltages. When an overvoltage is applied, the metal-oxide plates create a resistance that reduces the voltage to a safe level.

When it comes to surge protection components, the ROV14H221K-S-2 Varistor is the ideal choice. With its wide application field, maximum current rating of 15kA, and maximum voltage rate of 2200V, it is an excellent option for protecting electronic devices from overvoltage. It is also very easy to install and cost-effective, making it a popular choice for many different applications.

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