ROV10-221K-2

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Transient Voltage Suppression (TVS) diodes, or varistors, are designed to protect circuits from damaging voltages. Metal Oxide Varistors (MOVs) are one such device, and the ROV10-221K-2 is a specific MOV made by Littelfuse. Whether used in the automotive, consumer, or industrial markets, the ROV10-221K-2 provides a reliable device for suppressing voltage that could be hazardous to a device.

Voltage Rating & Clamping Voltage

The ROV10-221K-2 is a widely used version of the Littelfuse MOV. This specific MOV is rated for an operating voltage of 220VAC, which means it will begin to activate and start suppressing transients at this voltage.The device has a clamping voltage of 340V and an 10A peak current rating. This means that once it is activated, any surges or transients of 340V or above will be instantaneously dampened and will not travel through the circuit as long as the current does not exceed the device’s rating of 10A.

Working Principle

The metals used in the making of the ROV10-221K-2 are an alloy of zinc oxide, and this is the key to its working principle. An alternating current, or AC voltage, is effectively turned into direct current, or DC voltage, by the device. TVS diodes are capable of handling rapid or sudden changes in voltage, and the current generated can then be safely directed away from the main circuit.When a voltage surge or transient rises above the clamping voltage of 340V, the diode will instantly reduce the level of voltage so as to just below the peak rating of 340V. This is the main working principle of the ROV10-221K-2.

Application Fields

The ROV10-221K-2 is used in many applications, including automotive, consumer, and industrial applications. The device is popular for protecting circuits in the automotive industry, such as Dashboard Instruments, Automotive Electronics, and Navigation Systems. In addition, it can also be used in consumer electronics, such as TVs and stereo systems. The device is also widely used in industrial applications, such as power supplies, batteries, and switches. This is because of the device’s excellent clamping voltage and peak current rating, which makes it ideally suited for use in such applications.In addition to the above, the device is also used in applications such as data systems, telecom equipment, and computer peripherals, due to its various features.

Advantages & Disadvantages

One of the main advantages of the ROV10-221K-2 is its low cost relative to other MOVs. The device also boasts a high operating voltage and a fast recovery time, both important features in terms of protecting circuits. However, the device does have some drawbacks. The device can be damaged more easily than other types of MOVs, and can become less reliable over time due to the breakdown of its internal components.In addition, the peak current rating of 10A is lower than other MOVs, which may limit the device’s functionality in certain applications.

Conclusion

The ROV10-221K-2 is a widely used Metal Oxide Varistor designed to provide effective protection against voltage surges and transients. The device is cost effective, offers a high operating voltage, and has a fast recovery time. However, the device does have some drawbacks, including a lower peak current rating and decreased reliability over time. Despite these shortcomings, the device still provides excellent performance in numerous applications in the automotive, consumer, and industrial markets.

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