- Sep 28, 2017 -

The main parameters of Varistor are: pressure-sensitive voltage, flow capacity, junction capacitance, response time and so on. The response time of the varistor is NS, faster than the gas discharge tube, slightly slower than the TVs tube, and in general the Overvoltage protection of the electronic circuit can satisfy the requirement. The junction capacitance of Varistor is generally in the range of hundreds of to thousands of PF, in many cases, it is not suitable for direct application in the protection of high-frequency signal lines, when used in the protection of AC circuit, because of its large junction capacitance will increase leakage current, in the design of protective circuit should be fully considered.

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