Zinc oxide varistor (ZnO Varistor/MOV) is a nonlinear overvoltage protection semiconductor ceramic component.
Features:
Fast response (nanosecond level), wide voltage range, low cost, and no polarity.
Applications:
1. Home appliances and consumer electronics
The power input terminals of TV, refrigerator, air conditioner, computer, and mobile phone charger are designed to prevent lightning strikes and switch surges.
2. Power Supply and Industrial Equipment
Switching power supply UPS、 Inverter, industrial control equipment, and protection of power devices (MOSFET, IGBT).
3. Communication and signal lines
Network cables, telephone lines, cable TV lines, anti induced lightning and electrostatic discharge (ESD).
4. Power system (lightning arrester)
High voltage transmission, substations, and transformers are equipped with zinc oxide lightning arresters (with varistors as the core).
5. Automotive Electronics
Vehicle mounted ECU, LED driver, battery management system (BMS), to suppress load surge.
6. new energy
Photovoltaic inverters, wind power converters, energy storage systems, and protection of power modules.