noun
- an electronic component whose electrical resistance varies with the applied voltage
Usage: electronics
Examples
- The varistor protects the circuit from voltage spikes.
- Engineers installed a varistor to prevent damage from power surges.
- The metal oxide varistor clamped the overvoltage effectively.
- A varistor’s resistance decreases as voltage increases beyond a threshold.
- The surge protector contains several varistors for different voltage levels.
- Varistors are commonly used in power supply circuits.