MOV-20D152K

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Move-20D152K is a type of metal oxide varistors (MOVs) with a rated voltage of 20V and a capacitance of 152K. It is widely used in suppressing voltage spikes from external sources and isolating existing components in the circuit in order to protect them from the surge. It is mainly used in consumer electronics, computers, televisions, scanners, and other communication or audiovisual equipment.

A catalytic metal-oxide varistor is composed of a highly doped semiconductor material surrounded by two metal electrodes. During normal operation, the electrons transfer from one metal to the other through the varistor material. This material exhibits a very high resistance when a voltage is applied and a low resistance when the applied voltage increases. When the applied voltage is between the rated voltages, the resistance is very low and they operated as a short-circuit.

The Move-20D152K varistor has a nominal voltage of 20V, a good leakage current, high breakdown voltage, good linearity, a fast response time, and a high capacitance of 152K. This device is suitable for high frequency applications such as EMI/EMC/RFI protection, voltage regulations, line interfacing, and over-voltage and over-current protection. It is available in a variety of package sizes and styles including axial, radial, and surfacemount. It also has a wide operating temperature range from -40°C to 85°C.

When an external voltage source is connected to the Move-20D152K, the low resistance nature of the MOV will draw the surge current and create a voltage drop across its terminals. This will reduce the voltage across its terminals, and thus suppresses the incoming voltage spikes. It also helps in isolating other components in the circuit from the over-voltage as it acts like a short circuit during the lightning and redirects the surge current to the ground.

Furthermore, the Move-20D152K has a fast response time to voltage spike and is capable of responding to over-voltage currents in less than 1 nanosecond. This prevents the other components in the circuit from being damaged due to the high currents and high voltages. Additionally, due to its high capacitance of 152k, it can absorb high amounts of energy and dissipate it to the ground. This ensures that the voltage spikes will not affect the other components in the circuit.

Finally, the Move-20D152K has good linearity, which means that it is capable of controlling and regulating the voltage across its terminals. This makes it an ideal device for use in applications such as over-voltage and over-current protection, voltage regulation, line interfacing, and EMI/EMC/RFI protection. This makes it one of the most versatile and reliable devices for protection against external voltage spikes.

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