V140LA10CPX2855

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TVS (transient voltage suppressors) and varistors, also known as MOVs (metal oxide varistors), are one of the most common components in power circuits. The V140LA10CPX2855 is one such device, often used in a variety of applications.

Application Field of V140LA10CPX2855

The V140LA10CPX2855 is a bidirectional voltage-dependent metal oxide varistor, with rated capacitance at 10Vrms. It is designed for overvoltage protection in commercial and light industrial systems. It is widely used in various types of home appliances, automotive and digital products, communication systems, and other instrumentation systems.

Typical applications include protection of DC power lines, power supplies, motors, electronic equipment, and digital circuits. It can also be used as a lightning protection component in the power grid or other outdoor environment. The V140LA10CPX2855 provides reliable protection against transient overvoltage, such as electrostatic discharge (ESD), for a broad range of possible applications. It prevents sudden and extreme overvoltage transients from damaging sensitive equipment.

Working Principle of V140LA10CPX2855

Simply put, the V140LA10CPX2855 varistor works by diverting and dissipating excess voltage away from sensitive circuits. It works on the principle of a voltage-dependent resistor; meaning that it has a certain resistance that changes according to the applied voltage. When a possible overvoltage is sensed, the varistor\'s resistance decreases, thus allowing current to flow through it and protect the connected circuits.

The V140LA10CPX2855 is constructed with a metal oxide layer with a specific grain structure, which is sandwiched between two electrodes. Then, it is further sealed with a conductive epoxy resin to form a bidirectional symmetrical structure. When the applied voltage reaches its breakdown voltage, the resistance of the varistor suddenly decreases, thus allowing current to flow through it.

The V140LA10CPX2855 has a wide operating voltage range of 14~20Vrms, which can provide excellent protection against high voltage transients. It also has a low clamping voltage of 11V-12V, providing reliable overvoltage protection. Moreover, it has a high surge energy absorption capability which helps to further protect the load. The high surge energy absorption capability also gives it superior noise immunity, enabling it to also protect against noises.

Conclusion

The V140LA10CPX2855 is a bidirectional voltage dependent metal oxide varistor designed for protection against transient overvoltage. It is most commonly used in commercial and light industrial systems, and is suitable for a variety of applications, including DC power lines, power supplies, electronic equipment, and digital circuits. The V140LA10CPX2855 works by diverting and dissipating excess voltage away from sensitive circuits easily, and is able to do so due to its wide operating voltage range, low clamping voltage, and high surge energy absorption capability.

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