V470ZA05PX1347

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TVS - Varistors, MOVs

V470ZA05PX1347 is a varistor that protects electronic equipment from overvoltage transients. Varistors, also known as voltage-dependent resistors (VDRs), are electronic components that act as a resistor when the maximum voltage is exceeded, similar to a fuse. Varistors are important components for protecting sensitive electronic systems from transient voltages and surges that can break down and damage system components.

Application Field

The V470ZA05PX1347 is a surface-mount varistor designed to protect sensitive electronic components in harsh environments or in high-voltage situations. It can provide the necessary protection against electrical overstress (EOS) caused by overvoltages, electronic transients, and inductive switching.

The V470ZA05PX1347 can be used in numerous industrial, commercial, and consumer applications, including cell phone docks, computers, mobile radio systems, automotive audio systems, home appliances, power supplies, communications and instrumentation systems, telecommunication systems, and more. It is also suitable for harsh environments such as outdoor, industrial, and oil-filled motors.

Working Principle

The V470ZA05PX1347 works by utilizing the bipolar junction transistor (BJT) principle. Its voltage-dependent variable resistance provides the protection needed from sudden overvoltage transients. When an overvoltage is applied to the varistor, the transistor controlling it acts as a switch, allowing current to pass in one direction and blocking it in the other direction. This resistance then reduces the amplitude of the applied signal.

The amount of resistance provided by the V470ZA05PX1347 depends on the voltage applied. Higher voltages will result in higher levels of resistance, and vice versa. Once the voltage surpasses the designated threshold, the varistor will start to provide protection.

The V470ZA05PX1347 is designed to suit different industrial and commercial applications. It offers a wide range of wattages with an operating range from 8 to 28 V. It is also designed to withstand temperatures up to 125°C without degrading its performance.

Conclusion

The V470ZA05PX1347 varistor is a small but highly effective device designed to provide protection from overvoltages and EOS. Its small size makes it ideal for use in high-voltage systems, and its BJT-based design allows it to provide the necessary protection in harsh environments.

Whether you need to protect industrial equipment, computers, audio systems, or other sensitive electronic components, the V470ZA05PX1347 varistor can provide the protection you need. Its wide operating range and high temperature resistance make it suitable for a variety of applications.

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