1. The resistance of the varistor is infiniteA varistor is a resistive device with nonlinear volt-ampere characteristics. It is mainly used to clamp the voltage when the circuit is under overvoltage, and to absorb excess current to protect sensitive devices. When the voltage applied to the varistor

1. The important function of the voltage equalizing resistor is to hold the voltage dividing principle so that the voltages under the respective capacitors are equal. If there is no such, the voltage of each capacitor terminal will be different due to the difference of the capacity and insulation re

A varistor is a resistive device with nonlinear volt-ampere characteristics. It is mainly used to clamp the voltage when the circuit is under overvoltage, and to absorb excess current to protect sensitive devices. Nowadays, the varistor is widely used, and its main material is composed of a divalent

1. What does a varistor mean?A: Refers to the voltage across the varistor at the specified temperature and DC (typically 1 mA or 0.1 mA). 2. What is the reason for protecting the varistor?answer:(1) Distinguish between power protection, signal lines, and varistor for data line protection. They must

The varistor is generally used in parallel in the circuit. When the voltage across the resistor changes abruptly, the short circuit of the resistor blows the current fuse to protect it. Varistors are used in circuits and are often used for power supply overvoltage protection and regulation. The reli

The main parameters of varistor are nominal voltage, voltage ratio, control voltage, residual voltage ratio, current capacity, leakage current, voltage temperature coefficient, current temperature coefficient, voltage nonlinear coefficient, insulation resistance, static capacitance and so on. Genera

The varistor is a protective component that is currently used in lightning protection and surge protection of the power supply system. Its response speed, flow capacity and protection level are recognized. Since the failure mode of the varistor is mostly short-circuited, a short circuit in the syste

The varistor is a voltage-limiting protection device that utilizes the nonlinear characteristic of the varistor. When an overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value. Realize the protection of the latter circuit. The

The varistor is equivalent to a variable resistor. It is connected in parallel with the circuit. When the circuit is in normal use, the varistor has a high impedance, and the leakage current is small. It can be regarded as an open circuit and has little effect on the circuit. But when a very high su

The varistor is a voltage limiting type protection device. Using the non-linear characteristics of the varistor, when an overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the latter circuit. The respon