V12ZU2

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The V12ZU2 varistor is one of the commonly used electrical components in the field of surge protection. It is the perfect choice for users looking to protect sensitive electronic/electrical devices from excessive voltage surges.

In this article, we\'ll explain the working principle of the V12ZU2 varistor and its applications in detail.

Working Principle of V12ZU2 Varistor

The working of the V12ZU2 varistor is based on the principle of JFET and PNP transistors. It operates by sensing the incoming voltage and using its capacitors and resistors to limit the peak voltage to a safe threshold.

The device consists of two parts: a voltage sensing circuit, and an avalanche diode (AD) connected to the device’s output terminal.

The voltage sensing circuit uses a Zener diode and a resistor to compare the incoming voltage to the Zener voltage. If the voltage is lower than the Zener voltage, nothing happens. If the voltage is higher than the Zener voltage, the voltage sensing circuit triggers the avalanche diode to clamp the input voltage, which limits the surge voltage to a safe level.

Applications of V12ZU2 Varistor

The V12ZU2 varistor is primarily used in power electronic applications, such as automotive and industrial switches, motor drives, AC/DC converters, UPS systems, and surge protectors. It can also be used in HVAC systems and power systems.

In addition to controlling static charge, the V12ZU2 varistor can also be used to protect electronic devices from electrical noise, such as noise generated by motors, contactors, transforming or induction devices. The device is extremely effective in reducing the transmission of any kind of unwanted electrical signals.

The V12ZU2 varistor is also used in industrial and commercial applications, such as those related to the communication, data processing, and control systems. It can be used in applications related to solar power, drivelines, and remote control systems.

In addition, the V12ZU2 varistor is also widely used in telecommunications systems, communication networks, and other electronic equipment. It can be used to protect long and short lines, as well as to provide superior interference and signal-to-noise (SNR) ratios.

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