noun
- electronic components that change their electrical resistance based on the voltage applied across them, used to protect circuits from voltage surges
Usage: technical; electronics
Examples
- The surge protector contains varistors to prevent damage from power spikes.
- Engineers installed varistors in the circuit to regulate voltage fluctuations.
- Metal oxide varistors are commonly used in electronic devices.
- The varistors activated when lightning struck the power line.
- Quality surge protectors use multiple varistors for better protection.
- The technician replaced the burned-out varistors in the power supply.