What is a varistor? What is TNR? What is INR? What is ZNR?

Barista

 Variable Resistor is called "varistor"



 In circuits, TNR, INR, and ZNR are commonly used,

 There is no big difference in naming by maker and function.


 It absorbs static electricity and low voltage.

 (The principle is to use the internal characteristic that the current flows nonlinearly according to the magnitude of the voltage)

 It is usually used for surge protection.