Tag: Varistor

  • Understanding varistor

    Understanding varistor

    Being a form of a resistor, varistors are two-terminal semiconductor components that protect the electrical and electronic devices from overvoltage transients. In fact, the word is derived from the term variable and resistor, which is why it is also known as Voltage-dependent resistor VDR. Varistors are nonlinear varying resistance, dependent on the voltage applied. Their…