V25S420P

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Variable capacitance devices are an essential part of circuit protection. TVS - Varistors (metal-oxide varistors) and MOVs (metal-oxide varistors) are among the most commonly used variable capacitance devices to protect electronic circuits. The V25S420P, manufactured by Vishay Intertechnology, is a high-performance TVS-Varistor device for high-power applications. This article discusses the V25S420P application field, working principle, and unique features.

Application Field

The V25S420P TVS is designed to withstand high-energy electrical transients, and is used in many applications, such as computers, mobile phones, smart home appliances, power supplies, aerospace and defense, audio video, and automotive systems. The device is capable of carrying up to 500mA of continuous current and up to 50A peak pulse current.

Working Principle

V25S420P is a metal-oxide varistor (MOV) device that uses a thin film of zinc oxide processed onto an insulated substrate to create a variable capacitance. The device contains two electrodes on the substrate, one connected with zinc oxide material and the other left isolated and referred to as the gate terminal. When a voltage is applied to the MOV, the zinc oxide material changes its capacitance, allowing a current flow between the two electrodes. This current is then used to regulate the voltage across the surface of the device. The V25S420P is designed to protect circuits from electrical surges, spikes, and noise.

Features

The V25S420P provides a wide range of features, including:

• Robust protection against high-energy transients
• Low forward voltage drop
• High dielectric strength
• Tin-plated terminals for easy soldering
• Excellent thermal cycling capability
• Provides reliable noise immunity

The device also features a wide operating temperature range, making it an ideal choice for applications in extreme environmental conditions.

Conclusion

The V25S420P is a high-performance TVS-Varistor device designed for high-power applications. Its robust protection against high-energy transients, low forward voltage drop, high dielectric strength, tin-plated terminals, and excellent thermal cycling capability make it an ideal choice for applications where high-quality circuit protection is critical. The device can provide reliable noise immunity and is suitable for use in extreme environmental conditions.

The specific data is subject to PDF, and the above content is for reference