If the voltage level of the power electronic equipment is low, but the surge energy is relatively large, we can choose the pressure sensitive
The voltage V1mA is lower, the varistor of the varistor has a larger diameter varistor, and conversely, if the power supply electronic equipment has a withstand voltage level Vo
Higher, we need to choose a varistor with a higher varistor voltage V1mA, because it can protect our power supply.
Sub-electrical equipment, but also can extend the life of the varistor and the working time and safety.
Varistor resistors are used to protect their overvoltage protection circuits in various electronic devices. The varistor has
There are many types and specifications, there are many main parameters for varistor, the main parameters are: nominal voltage, voltage, maximum
Continuous operating voltage, maximum limiting voltage, residual voltage ratio, current capacity, leakage current, voltage temperature coefficient, current temperature coefficient, voltage non-
Linearity factor, insulation resistance, static capacitance, etc. These choices must meet the requirements of our protected circuits, especially at nominal power
Press on, the nominal voltage should be accurate. Because the nominal voltage is too high, our varistor will not be protected by any object.
Voltage protection, on the contrary, if the nominal voltage is low, our varistor will be broken down or wrong.
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