V385LU20APX2855

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TVS - Varistors, MOVs are devices designed to protect circuits from overvoltage transients. The V385LU20APX2855 is designed to protect circuit components or systems from incoming voltages that may damage or even destroy them. It is a bidirectional Varistor, which means it can operate in either direction.

Application Field

The V385LU20APX2855 is ideal for protecting a variety of circuits from incoming transients that may damage them. The device’s bidirectional features makes it effective against both positive and negative transients on both sides of the circuit. It is used in applications such as automotive, industrial, and consumer electronics, as well as telecommunications and networking among other markets.

Working Principle

The V385LU20APX2855 is a Metal-Oxide Varistor (MOV) that operates on the principle of a reversed biased diode. The diode is connected to two electrodes, a positive and a negative one, and when the applied voltage between these two electrodes exceeds a certain breakdown voltage, current starts to flow in the reverse-biased direction. In other words, when a high overvoltage transient is encountered, a surge current will start flowing through the device and is absorbed by the MOV.

Because of its bidirectional operation, it can also absorb high reverse transients in the reverse direction, and it provides effective protection for both polarities. The precise breakdown voltage of this device is 385V, with a maximum clamping voltage of 280V. This ensures that surges that exceed 385V are safely directed away from the protected elements, thus ensuring their integrity. The maximum current rating of this mating device is 20A.

The V385LU20APX2855 is also designed to provide a low residual voltage, meaning that the voltage at the protected circuit elements remains low even after a surge event. This ensures that the components are not damaged by the failed transient energy.

In addition, this device features protection against overvoltage, overcurrent, and over-temperature transients. This makes it highly effective in a wide range of applications, and it is capable of providing excellent protection for the components of circuits.

Conclusion

The V385LU20APX2855 is a bidirectional Varistor designed to protect circuits from high overvoltage transients. Its bidirectional operation and low residual voltage makes it highly effective in a wide variety of applications, including automotive, industrial, and consumer electronics, as well as telecommunications and networking. Its maximum clamping voltage is 280V, and it can dissipate up to 20A of surge current. In addition, the device also provides protection against overvoltage, overcurrent, and over-temperature transients, making it a very reliable and effective device for circuit protection.

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