TMOV20R300M

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TVS - Varistors, MOVs, are among the most common components used for surge protection. The TMOV20R300M is a type of Metal Oxide Varistor (MOV) that is designed to protect circuits against transients and surges in voltage. The device is made up of a series of zinc oxide discs that are layered together and connected between two terminals. These discs are connected in such a way that if a voltage surge beyond a certain threshold is detected, the discs will break down and form a low-resistance path that the surge can be diverted to. This then prevents the surge from causing any damage to the circuit or components.

The TMOV20R300M is designed for a wide range of applications, including power supplies, electronic equipment, and communication systems. It is best suited for high-frequency resistance applications, as it has a fast response time that enables it to limit the arc current of the surge. The device has a broad operating temperature range of -40°C to +85°C, and its surge rating is 20 kA 8/20μs. It is also UL 497C listed and meets a number of other industry standards.

The TMOV20R300M works by utilizing an internal voltage divider circuit. This allows the device to detect the level of surge current, and the device will start to break down and form a low-resistance path when the current exceeds the threshold. This low-resistance path then diverts the current away from the circuit. The device has a very low versus high voltage rating, so it is important to make sure that the maximum voltage of the circuit does not exceed the rating, as this can cause permanent damage to the MOV.

The TMOV20R300M is not a particularly complex device, but it is essential in many applications where surge protection is required. Not only does it protect the sensitive components from being damaged, but it can help to improve electrical system performance and reduce maintenance costs. As such, it is an important device for ensuring that electronic systems are able to function as expected even in the event of a surge in the voltage.

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