MOC3083 Zero Cross Optoisolator Optocoupler IC (Triac Driver DIP-6)

The MOC3083 is a zero-cross optoisolator optocoupler designed to safely isolate low-voltage control circuits from high-voltage AC loads. It integrates an infrared LED and a zero-crossing TRIAC driver output, enabling reliable triggering of external TRIACs with minimal electrical noise and reduced electromagnetic interference (EMI). The MOC3083 is commonly used in solid-state relays, AC lamp dimmers, home appliances, industrial automation, and microcontroller-based AC load control systems. It is compatible with Arduino, ESP32, STM32, Raspberry Pi, PLCs, and other control platforms through appropriate interface circuitry.

Key Features -

• Zero-cross TRIAC driver optocoupler

• High electrical isolation between input and output

• Built-in infrared LED and phototriac

• Reduces EMI through zero-cross switching

• Drives external TRIACs

• Suitable for AC load control

• Compact DIP-6 package

• Low input current requirement

• Reliable and stable operation

• Ideal for industrial and embedded applications

Specifications -

• Product type - Zero Cross Optoisolator Optocoupler

• Model - MOC3083

• Package type - DIP-6

• Output type - Phototriac Driver

• Isolation voltage - Typically 5300V RMS

• Input type - Infrared LED

• Zero-cross detection - Integrated

• Forward LED current - Typically 5mA (Maximum Trigger Current Depends on Variant)

• Operating temperature - -40C to +100C

• Mounting type - Through Hole

Applications -

• Solid-state relays

• AC motor control

• AC lamp switching

• Home appliances

• Industrial automation

• Power control circuits

• Microcontroller AC interfaces

• Embedded electronics