The residual voltage generated by the varistor cannot be removed because the varistor is a voltage-limiting component. Each type of varistor has a different residual voltage. The residual voltage increases with the current flowing through the varistor. The higher the residual pressure, the nonlinear component.

What is the reason for defining the nominal voltage and residual voltage in the varistor?

The nominal voltage is its protection voltage, that is, the varistor is turned on and off beyond the nominal voltage.

Is the voltage to be protected by the varistor not exceeding the nominal voltage or residual voltage?

The residual voltage is the voltage generated by the current flowing through the resistor during the varistor conduction discharge, that is, the voltage remaining in the circuit.

If the input is 500V, the pressure sensitive nominal 300V, the pressure sensitive is turned on when the voltage exceeds 300V, and the current flows. At 5KA, 400V is generated at both ends of the varistor, that is, the residual voltage is 400V at 5KA.

After reading the above, do you have any answers to some questions about the residual voltage of the varistor? I hope the content of this article can help everyone. Advances in technology have allowed the field of application of varistor to continue to expand. Electronic devices are indispensable in life, and JEC varistor manufacturers are made with heart and peace of mind!