MOC3063 Zero-Crossing Optocoupler – 600V Triac Driver for Safe AC Load Control

The MOC3063 is an optocoupler integrated with a zero-crossing Triac driver, designed to safely interface low-voltage control circuits (e.g., microcontrollers, PLCs) with high-voltage AC mains (up to 600V). Its zero-crossing detection ensures the connected Triac triggers only when the AC voltage crosses zero, eliminating inrush currents, reducing EMI, and extending the lifespan of connected loads like motors, heaters, and lamps. With reinforced isolation (5,300V RMS) and compact DIP-6 packaging, it’s ideal for smart switches, dimmers, appliance control, and industrial automation systems requiring robust electrical isolation.

Specifications (Categorized):

Input (LED) Characteristics:

• Forward Current (IF): 15mA (Max)

• Forward Voltage (VF): 1.2V (Typical at 10mA)

• Trigger LED Current (IFT): 10mA (Typical for guaranteed triggering)

Output (Triac Driver) Characteristics:

• Output Voltage (VDRM): 600V (Peak Repetitive Off-State)

• Peak Surge Current (ITS): 1A (Non-repetitive)

• Zero-Crossing Voltage (VZC): ±20V (Max)

Isolation & Safety:

• Isolation Voltage (Viso): 5,300V RMS (1 minute)

• Creepage Distance: 7.5mm (Min)

Triggering & Timing:

• Turn-On Time (tON): 1ms (Max at 25°C)

Package & Environmental:

• Package: DIP-6 (Dual In-Line)

• Operating Temperature: -40°C to +100°C