V680LT100CPX2855

A varistor, or voltage-dependent resistor (VDR), is an electrical component designed to have a low resistance at normal voltages, but a much higher resistance to high voltages. They are used for surge protection in a wide variety of applications, from cell phone chargers to aircraft control systems. In this article, we will take a closer look at the V680LT100CPX2855 varistor, discussing its application fields and working principle.

Application Fields

V680LT100CPX2855 varistors are widely used as a safety device in electronic circuits, providing protection against power surges and spikes. They can be found in laptops, TVs, and desktop computers, where they protect delicate electronic components from being damaged by voltage spikes. Additionally, this varistor type is used in photocells, motion detectors, and telecommunication and automotive electronics.

Working Principle

At normal voltages, the varistor has a low electrical resistance, which allows electrical current to flow freely. However, when the voltage reaches a certain threshold, known as the clamping voltage, the varistor resistance rapidly increases, limiting the current and protecting the circuit from damage. The V68 LT100CPX2855 varistor in particular has a clamping voltage of 2855V, making it suitable for high-voltage applications.

The varistor works by converting excess voltage into heat. When the voltage exceeds the clamping voltage, the extra energy is converted into heat, dissipating it safely away from the circuit. The higher the voltage, the more heat is dissipated, and the greater the surge protection provided by the varistor.

Conclusion

V680LT100CPX2855 varistors are an essential part of modern circuit design, providing protection against power surges and spikes. Thanks to its relatively high clamping voltage, it is well suited to high-voltage applications, such as automotive and telecommunication electronics.