V420LU20AP

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Varistors, MOVs, and other forms of TVS (Transient Voltage Suppressors) are important components used in many electronic devices, for diverting hazardous voltage transients away from vulnerable circuits. One of the more versatile products in this category is the V420LU20AP transient voltage suppressor, offering a wide range of applications and a strong protection against a variety of electrical stressors.

Applications

The V420LU20AP is an excellent solution for many types of equipment, including personal computers and their peripherals, industrial and telecom systems, automotive components, and many other low voltage applications. Its low capacitance and high-performance response make it useful in high-frequency circuits, while its high surge current handling and low clamping voltage make it useful in low frequency circuits.

The V420LU20AP offers outstanding protection and quick response time for devices that deal with high or transient loads. Its large area silicon-carbide junction is capable of handling greater power than many traditional varistors, making it ideal for high current applications that require high surge ratings. Its inherent resistive and capacitive characteristics also make it suitable for signal line protection.

Working Principle

The V420LU20AP functions by diverting hazardous voltage transients away from vulnerable circuits. In the simplest terms, it does this by providing a large conducting surface with a high enough electrical resistance to absorb and dissipate any excess current.

When a surge voltage exceeds the V420LU20AP\'s threshold during normal operation, the device\'s internal components start to increase the electrical resistance, allowing the device to absorb and dissipate the spike\'s energy. This process is repeated with each surge voltage until the voltage becomes stabilized again.

The V420LU20AP is also capable of self-healing after a particular burst of voltage surge. This is done through a series of short-lived conductive channels that form rapidly when the voltage exceeds the device\'s maximum current to provide an additional path for diverting the hazardous transient.

The high quality materials used in fabrication of the V420LU20AP help ensure consistent performance and long term reliability. Its high surge ratings and low capacitance make it well-suited for the protection of circuit boards, communications devices, automotive components, and many other applications that require transient voltage suppression.

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