Features: _x000D_1. When the voltage applied to the varistor is below its threshold, the current flowing through it is extremely small, which is equivalent to a resistor with an infinite value. Equivalent to a switch that is off. _x000D_2. When the voltage applied to the varistor exceeds its threshold, the current flowing through it surges, which is equivalent to an infinitely small resistance, equivalent to a closed state switch. _x000D_3. Small body, easy to install and remove. _x000D_4. Adopted of high quality electronic components, and accuracy process, ensure for the durability _x000D_5. The varistor has good contact performance, ensure stable working _x000D_ _x000D_Specification: _x000D_Condition: 100% Brand new _x000D_Item Type: Varistor _x000D_Diameter: Approx. 10mm / 0.4in _x000D_Voltage: 470V _x000D_Package Size: Approx. 10 x 10 x 2cm / 3.9 x 3.9 x 0.8in _x000D_ _x000D_Package List: _x000D_50 x Varistors 1When the voltage applied to the varistor is below its threshold, the current flowing through it is extremely small, which is equivalent to a resistor with an infinite value. Equivalent to a switch that is off. 2When the voltage applied to the varistor exceeds its threshold, the current flowing through it surges, which is equivalent to an infinitely small resistance, equivalent to a closed state switch 3Small body, easy to install and remove. 4Adopted of high quality electronic components, and accuracy process, ensure for the durability 5The varistor has good contact performance, ensure stable working