Excellent IFT Stability − IR Emitting Diode Has Low Degradation Peak Blocking Voltage 400 V Safety and Regulatory Approvals: UL1577, 4,170 VAC RMS for 1 Minute and DIN EN/IEC60747−5−5 These are Pb−Free Devices Example Applications: Industrial Controls, Solenoid/Valve Controls, Traffic Lights, Static AC Power Switch, Vending Machines, Incandescent Lamp Dimmers, Solid State Relay, Motor Control, Lamp Ballasts The MOC3021M series are optically isolated triac driver devices. These devices contain a GaAs infrared emitting diode and a light activated silicon bilateral switch, which functions like a triac. They are designed for interfacing between electronic controls and power triacs to control resistive and inductive loads for 115 VAC operations.