V275LU4

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TVS - Varistors, MOVs are essential components in many electrical systems since they provide a level of protection against surges and other transient overvoltages. The V275LU4 is a non-polarized, bidirectional transient voltage suppressor (TVS) that is designed to protect against the effects of electrical surges and other overvoltages. In this article, we will discuss the application fields and working principle of the V275LU4.

Application Field of the V275LU4

The V275LU4 is well suited for protecting telecommunications and other sensitive electronic circuits from transient overvoltages caused by lightning, electrostatic discharges, or other voltage surges. It is widely used in a variety of applications such as modems, cameras, portable devices, cell phones, power supplies, Uninterruptible Power Supply (UPS) systems, and more.

Apart from the above-mentioned applications, the V275LU4 can also be used in primary protection of medical equipment, including patient monitors and imaging machines. This provides protection from overvoltage induced transients and electrostatic discharges (ESD) which often occur when connecting and disconnecting peripherals to medical equipment.

Working Principle of the V275LU4

The V275LU4 is a solid-state device that uses a non-polarized bidirectional configuration to protect against transients and electrical overvoltages in both directions. The device is composed of two complementary pairs of vertical double-diffused metal oxide semiconductor (VDMOS) structures, which work together in a symmetric way to protect against transient surges.

When the input voltage exceeds a certain threshold voltage, a MOV-like action is activated, and a controlled current takes place through the device. This current flows through the device until the voltage returns to a safe level, thus protecting the circuit from further damage. The V275LU4 offers protection from electrostatic discharges up to 15kV, as well as transients up to 650 volts.

Conclusion

In summary, the V275LU4 is an essential component for many electrical circuits and devices. With its non-polarized, bidirectional configuration, it provides protection against transients and overvoltages in both directions. Additionally, it is widely used in telecommunications, portable devices, medical equipment, and more. Finally, its protection is provided through a MOV-like action which takes place when an input voltage exceeds a certain threshold and a controlled current is released.

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