RL1812A180K 18V Metal Oxide Varistor – 1812 Package | RUILON

The RUILON RL1812 Series Metal Oxide Varistors (MOV) are high-energy surge protection devices designed for advanced electronic systems requiring superior transient voltage suppression. With a larger 1812 SMD package, these varistors deliver significantly higher energy handling capability, making them ideal for demanding and high-power applications.

These MOVs provide fast response time, stable clamping characteristics, and excellent surge absorption performance, ensuring reliable protection against voltage spikes and transient events. Their low leakage current and robust construction ensure long-term durability and consistent performance in critical environments.

Designed for applications requiring enhanced protection and reliability, the RL1812 series is widely used in industrial equipment, power systems, and communication infrastructure.

✅ Key Features

Large 1812 SMD package
High energy absorption capability
Fast transient response
Stable clamping voltage
Low leakage current (~0.1–0.2 µA)
Wide voltage range (8V to 620V)
High reliability and long operational life

✅ Applications

Power supplies and SMPS
Industrial automation systems
Telecommunication equipment
Consumer electronics
IoT and smart devices
Signal and power line protection