0070.2561.A2

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TVS - Varistors, MOVs are an integral part of electrical and electronic circuits. They are designed to protect circuits from transients, voltage spikes, and electrical noise. In this article we will discuss the application field and working principle of an 0070.2561.A2 Varistor.

Application Field

The 0070.2561.A2 Varistor is a bidirectional, nonlinear, surge protective device, designed for use in AC or DC circuits. It can handle up to 200 volts of DC or AC current and can withstand a certain amount of overvoltage or reverse-polarity before failing. Its rated maximum current is 70A and its clamping voltage is 25V. Thus, it is most commonly used as a surge protection device for circuits ranging from 15V to 200V AC or DC. As it is made of ceramic, it is suitable for high-temperature environments and can even withstand temperatures up to 125°C.

Working Principle

The 0070.2561.A2 Varistor works on the principle of nonlinear resistance. When the incoming voltage is low, the resistance of the varistor is high, allowing current to pass through the circuit without any disturbances. When the incoming voltage rises above the specified levels, the resistance of the varistor drops drastically, limiting the current to a predetermined safe level. This prevents the circuit from damage due to overvoltage or current overload

In addition to protection from overvoltages, 0070.2561.A2 Varistors also offer protection from electrostatic discharges and ESD. They have a low capacitance which helps reduce the effects of electromagnetic interference (EMI) and radio frequency interference (RFI). This ensures stable and reliable operation of the circuit. These varistors can also be used to suppress radio frequency interference signals and can withstand a wide range of frequencies from DC to 50MHz.

The 0070.2561.A2 Varistor is also a low cost solution to voltage protection. It is small and lightweight compared to other similar devices, making it ideal for use in portable and space-constrained applications. It is also easy to install and maintain, making it an attractive option for many users.

Overall, the 0070.2561.A2 Varistor is a versatile and robust device that offers protection from transients, voltage spikes, overvoltage, electrostatic discharges, and EMI. It is suitable for use in a wide range of AC or DC circuits, offers low capacitance, and is a cost-effective solution for applications especially in high-temperature environments.

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