onsemi | MOC3051M

The MOC3051M device consist of AlGaAs infrared emitting diode optically coupled to a non-zero-crossing silicon bilateral AC switch (triac). This device isolates low voltage logic from 115 and 240 Vac lines to provide random phase control of high current triacs or thyristors.

This device features a greatly enhanced static dv/dt capability to ensure stable switching performance of inductive loads. It has an Operating Temperature range of -40 °C to +85 °C.

Features: 

• High isolation voltage - minimum 7500 peak VAC
• Underwriters laboratory (UL) recognized 
• 600 V peak blocking voltage
• VDE recognized (File #94766)
• Ordering option V (e.g. MOC3023V-M)
• Excellent I_FT stability - IR emitting diode has low degradation

Applications:

• Solenoid/Valve controls
• Lamp ballasts
• Static AC power switch
• Interfacing microprocessors to 115 and 240 Vac peripherals
• Solid state relay
• Incandescent lamp dimmers
• Temperature controls
• Motor controls