V420LA40CPX2855

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TVS - Varistors, MOVs are passive electronic components used in electrical circuits for the protection of components from high voltage pulses. The V420LA40CPX2855 is an ideal solution for protecting sensitive electronic components, such as processors, integrated circuits, and other delicate electronic components, against damage due to transient over-voltage.

The V420LA40CPX2855 is a metal oxide varistor (MOV). It is a non-linear device which can function as an over-voltage protection component. MOVs are made from sintered ceramic discs that act as a voltage-dependent resistor. The discs are formed from a mixture of zinc oxide and other metal oxides, and are normally embedded with several metal layers. The device works by providing a pulse current which is proportional to the applied voltage. Generally, the V420LA40CPX2855 can support a maximum current of 41A, with a peak clamping voltage of 45V.

The V420LA40CPX2855 is typically used for transient voltage and over-voltage protection in sensitive consumer electronics, including computers, audio/video equipment, and other devices. It is typically installed on printed circuit boards and connected in series with other components to help reduce or absorb transient voltages, or over-voltage. It is also suitable for cable line protection, power supply and load protection, and automotive equipment protection.

The working principle of the V420LA40CPX2855 is relatively simple. As voltage is applied to the MOV, the metal oxide discs become increasingly conductive. When voltage reaches the maximum peak current rating, the discs become saturated with current. This limits the amount of current flowing through the MOV and prevents damage to sensitive components. The device is designed to react to transient voltages and over-voltages quickly, limiting the amount of time the device is exposed to these transient pulses. Additionally, the V420LA40CPX2855 is designed to dissipate heat from the discs, allowing them to cool quickly and remain stable.

In summary, the V420LA40CPX2855 is a versatile and reliable voltage and over-voltage protection device suitable for many applications, including consumer electronics, home appliances, automotive equipment, and many other applications. It is a metal oxide varistor (MOV) that works by providing a pulse current proportional to the applied voltage. Once voltage reaches the maximum peak current rating, the metal oxide discs become saturated with current, limiting the amount of current in the device and preventing damage to sensitive components.

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