MOC3021 Optocoupler IC (Triac Driver, Random Phase) – Everlight

MPN:3021
The MOC3021 is a triac-output optocoupler IC from Everlight, designed for safe and efficient AC load control. It features an infrared LED input optically coupled to a triac driver output, providing strong electrical isolation between low-voltage control circuits and high-voltage AC power lines.

Unlike zero-cross types, the MOC3021 is a random-phase optotriac, making it ideal for phase control applications such as light dimmers and motor speed controllers.