MOC3162M

Triac, SCR Output Optoisolators Overview

The MOC3162M is a single-channel Triac and SCR output optocoupler manufactured by Fairchild Semiconductor. It integrates a Gallium Arsenide infrared LED with a monolithic silicon detector to provide zero-voltage crossing detection for bidirectional triac drivers. The device operates within an ambient temperature range of -40°C to +85°C and features a peak off-state output voltage (VDRM) of 600 V. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.3 V, and a power dissipation rating of 250 mW. The unit utilizes a PDIP-6 through-hole package.

Triac, SCR Output Optoisolators Feature Summary

• Integrates zero-voltage crossing circuitry for precise AC line switching control
• Provides high isolation between input and output circuits via optical coupling
• Designed for direct interface with microcontrollers or logic gates

Triac, SCR Output Optoisolators Applications

• Solid state relays for AC load switching
• Motor speed control circuits
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer marking on the component body to distinguish between Fairchild Semiconductor and onsemi production lots, as both entities have produced this part number. Confirm the specific insulation voltage rating required for your safety application, as datasheets may vary slightly between legacy Fairchild and current onsemi documentation. Ensure the DIP-6 package dimensions match your PCB footprint requirements before finalizing procurement.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing detection is mandatory to minimize electromagnetic interference during AC switching events. The 600 V blocking voltage suits standard 115 V and 240 V AC mains applications. Consider the 60 mA forward current capability when designing the input series resistor to ensure reliable triggering from standard logic levels without exceeding the LED's power dissipation limits.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC316X family of zero-crossing phototriac drivers. It serves as a critical interface component in power electronics, allowing low-voltage digital systems to safely control high-voltage AC loads. The integration of the ZC detector simplifies circuit design by eliminating external timing components typically required for soft-switching applications.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3041 is a comparable non-zero-crossing alternative if phase-angle firing is acceptable. For pin-compatible replacements with similar specifications, verify the MOC3061 series, though input trigger characteristics may differ. Always cross-reference the specific suffix codes to ensure identical packaging and insulation ratings.