FeaturesBelow the threshold: When the voltage applied to the varistor is lower than its threshold, the current flowing through it is extremely small, which is equivalent to a resistor with infinite resistance. Equivalent to a closed switch.Exceeding the threshold: When the voltage applied to the varistor exceeds its threshold, the current flowing through it will generate a surge, which is equivalent to an infinitesimal resistance, which is equivalent to a closed switch.Easy to install and remove: The packaging size of voltage dependent resistors is about 10 x 10 x 2 cm / 3.9 x 3.9 x 0.8 inches. The body is small and easy to install and remove.Quick response: Radial lead disc varistors are 100% brand new, and use high-quality electronic components, precision craftsmanship, sensitive measurement, and can respond quickly to voltage changesApplication: Radial lead disc varistors have good contact performance, ensure stable work, and can be used in household appliances, surge suppressors, telephones, switches, relays, etc.Features: 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. 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. 3.Small body, easy to install and remove. 4.Radial lead disc varistors adopted of high quality electronic components, and accuracy process, ensure for the durability 5.The varistorhas good contact performance, ensure stable working Specification: Condition: 100% Brand new Item Type: Varistor Diameter: Approx. 10mm / 0.4in Voltage: 470V Package Size: Approx. 10 x 10 x 2cm / 3.9 x 3.9 x 0.8in Package List: 50 x VaristorsPackage List