MOV-20D181KTR

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TVS - Varistors, MOVs

 MOV-20D181KTR is a kind of transil type metal oxide varistor, commonly used for transient voltage surge suppression for lightning and switching devices. The device is used for protection against inrush, overvoltage, overcurrent, and EMI/RFI noise.

The MOV-20D181KTR varistors consist of an zine oxide disk encased in a plastic case. The disk has an outer oxide coating, which prevents the internal electrical contacts from going bad. This outer layer is also responsible for the device\'s low capacitance. Inside the disk is a thin metal oxide layer. This is responsible for maintaining the electrical characteristics of the device.

The device works by clamping the voltage across it to a safe level. This is done by the varistor\'s resistance changing in response to changes in the voltage across the device. At low voltages the varistor acts like an open circuit, allowing the current to flow unchecked. At higher voltages, the resistance changes and the current is limited to the trip voltage, known as the varistor\'s clamping voltage.

MOV-20D181KTR can operate efficiently over a wide range of voltages and temperatures. Its typical application is to protect circuits against overvoltage transients such as lightning strikes, rectifier failures, or capacitive transients due to power factor controllers or power electronics assemblies. It is also commonly used to protect sensitive electronic equipment or telephone lines from high-voltage spikes.

The device can protect against both alternating current (AC) and low-frequency direct current (DC) overvoltages, as well as high-frequency data interferences, from both internal and external sources. It is also can be used to reduce the effects of EMI/RFI interference. Its wide working temperature range of -40 to +85°C also makes it suitable for many industrial and commercial applications.

MOV-20D181KTR is ideal for protection of consumer electronics and other devices against transient electrical disturbances. Its low-clamping voltage, fast-response time, low-leakage current, and wide operating temperature range make it an ideal choice for many applications.

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