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TVS: Varistors, MOVs

ROV05-121K-S-2 application field and working principle

A varistor is also known as a metal oxide varistor, which is a specialized type of voltage-dependent resistor. It is usually used in power supplies and circuits to protect electrical components from damage due to over-voltage transients. A ROV05-121K-S-2 is a type of varistor which is particularly suitable for television sets, computers and other electronic devices. The specific characteristics of this varistor make it usable in a number of different applications.

The ROV05-121K-S-2 works by providing protection against high voltage spikes or surges in the system. This type of varistor is able to absorb large amounts of energy at one time, yet it is also able to maintain a low temperature and release the energy gradually. This helps to protect the circuit from any damage due to short term and long term over-voltage conditions.

The ROV05-121K-S-2 has a nominal breakdown voltage rating of 8V, which can be used to control the amount of voltage spike or surge it can absorb. The leakage current rating is also specified at less than 0.1mA, making it suitable for even low power applications. Furthermore, the device has a response time of less than 100ns, allowing it to provide protection even in fast-moving circuits.

The ROV05-121K-S-2 can be used in a variety of applications, including line filtering and transient voltage suppression. In line filtering, the varistor is used to protect a circuit from the noise induced by power lines. This can be especially beneficial in industrial and automotive settings, where the lines are typically exposed to a large amount of noise. The transient voltage suppression aspect of this device helps to regulate electrical pulses, preventing any over-voltage damage or interference caused in circuits.

ROV05-121K-S-2 devices are usually constructed from a metal oxide material and are formed into a small rectangular block. A metal frame is used to secure the varistor into place. There are usually two screw terminals connected to each side of the varistor, and these provide an easy way to connect the device to other circuits or components. The connection itself is fairly straightforward, and the varistor typically uses two wires to make the connection.

The ROV05-121K-S-2 is a highly efficient and reliable way to provide protection for electronic circuits against transient voltage spikes and surges. It is ideal for use in television sets, computers, and other electrical devices where protection from voltage fluctuations is required. The varistor is also easy to install, making it an ideal choice for a wide variety of applications.

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