Features 1. 【Function】When the voltage applied to the varistor is below its threshold, the current flowing through these varistors is very small, which is equivalent to a resistor with infinite values. Equivalent to a closed switch. 2. 【10mm diameter】The body of the varistor is compact and easy to install and disassemble, making it very suitable for precision circuit board processing. 3. 【High quality electronic components】Precision craftsmanship, equipped with upgraded metal pins for varistors and resistors, with good contact performance, stable operation, and durability. 4.【Sufficient quantity】There are 50 pieces of varistors widely used in various DIY projects and electrical experiments. 5. 【Variable resistance switch】When the voltage applied to the rheostat exceeds its threshold, the current flowing through the rheostat will surge, equivalent to an infinitely small resistor and a closed state switch. 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 Varistors Package List