MOV-20D751KTR

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TVS - Varistors, MOVs, are components used to reduce transient voltages. A MOV-20D751KTR varistor is a specialized type of varistor that is designed to protect electronics from voltage faults caused by lightning strikes, EMI, or other events that create high electrical volumes. This article will explain the MOV-20D751KTR application field and working principle.

MOV-20D751KTR Application Field

The MOV-20D751KTR is a type of varistor specifically designed to protect electronics from transient voltage due to lightning strikes or other events. The MOV-20D751KTR is best suited for use in power supply lines, AC and DC inputs, control circuits, and other equipment used in telecommunications, consumer electronics, computers, and other electronic equipment. It is rated for a maximum voltage of AC 750V, and has a maximum surge current of 35A.

The MOV-20D751KTR is also designed to be highly resistant to environmental factors such as humidity, heat, and corrosion. This makes it well-suited for applications in outdoor environments, where normal varistors are less likely to handle external stresses over time. Additionally, the MOV-20D751KTR has a low leakage current, making it suitable for use in low-power applications, including solar energy systems.

MOV-20D751KTR Working Principle

The working principle of the MOV-20D751KTR is simple. When a high voltage surge is applied to the varistor, it breaks down and passes the surge through, thus protecting the equipment from damage. The MOV then reverts to its normal state, ready to absorb the next surge.

The MOV uses a metal oxide-based semiconductor material sandwiched between two metal plates. This behavior is similar to that of a diode, but a MOV typically has a higher voltage breakdown and larger current carrying capacity. When a voltage is applied to the MOV, the voltage creates an electric field across the metal oxide layers. This electric field increases until the semiconductor material becomes conductive, at which point, it will start to absorb the excess surge current. Once the current is absorbed, the electric field decreases, and the MOV returns to its normal state.

Conclusion

The MOV-20D751KTR is a specialized type of varistor, designed to absorb and dissipate transient voltages caused by lightning strikes, EMI, or other transient events. With a voltage rating of AC 750V and a surge current capacity of 35A, it is best suited for power supply lines, AC and DC inputs, control circuits, and other equipment found in consumer electronics, computers, and telecommunications applications. Its working principle is based on the use of a metal oxide-based semiconductor material, which will break down and pass a surge current when triggered by a high voltage event.

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