MOV-20D180KTR Circuit Protection

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TVS (Transient Voltage Suppressor) - Varistors, MOVs (Metal Oxide Varistors) are components used to protect electronics from the damaging effects of voltage spikes. These components are usually connected in parallel with the circuit, and are designed to absorb large transient voltages and divert them away from your circuit components.

MOV-20D180KTR Application Field

The MOV-20D180KTR is a member of Littelfuse’s MOV® (Metal Oxide Varistor) family. It is designed to provide reliable overvoltage protection from 180V up to 315V and is suitable for use in a wide range of applications such as consumer electronics, industrial control systems, telecommunications, automotive, lighting, and data storage devices. The MOV-20D180KTR offers enhanced performance including high peak power handling of 100W, low clamping voltage and fast response time. It is available in an 1812 case size, and is rated for 20mm physical MOV.

MOV-20D180KTR Working Principle

MOVs are designed to conduct current when a voltage exceeding its rated clamping voltage is applied. The MOV-20D180KTR is designed to shunt a very large energy during a transcient event to a low impedance path, thus protecting delicate circuit components from being damaged due to excessive currents, voltage or power. The MOV-20D180KTR will conduct current for only a brief amount of time before the voltage drops back below the clamping voltage.

The MOV-20D180KTR consists of a thin-film metal oxide semiconductor, coated with aluminum oxide. This film gives the MOV its voltage clamping properties. The MOV-20D180KTR is internally connected to an interconnected framework, typically by soldering, and the energy from the transient event is allowed to jump to the interconnected framework like a spark plug. The aluminum oxide film will start to degrade, resulting in an increase in the leakage current, which is why it is important to replace an MOV that has been in use for an extended period of time to maintain reliable circuit protection.

The MOV-20D180KTR is capable of handling peak power of up to 100W. The low clamping voltage at 315V helps protect delicate electronic circuitry from permanent damage due to excessive voltage. The fast response time of the MOV-20D180KTR helps to ensure that it will quickly shunt the energy from the transient, thus providing effective protection from the damaging effects of voltage spikes.

Conclusion

MOV-20D180KTR is a component designed to protect circuitry from the effects of overvoltage and are widely used in various applications. The MOV-20D180KTR can handle a peak power of up to 100W, has a low clamping voltage of 315V, and a fast response time to quickly shunt the energy from voltage spikes. By connecting an MOV-20D180KTR in parallel with a circuit, it will provide reliable circuit protection from the damaging effects of overvoltage.

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