MOC3012FR2M

Triac, SCR Output Optoisolators Overview

The MOC3012FR2M is a Triac and SCR output optocoupler manufactured by onsemi. It features a PhotoTriac output with no zero-crossing circuit, housed in a 6-pin SMD-DIP package. Key electrical parameters include an isolation voltage of 5300 Vrms, a forward current of 60 mA, and a forward voltage of 1.15 V. The device supports a power dissipation of 330 mW and operates within a temperature range of -40°C to +85°C. It has a maximum trigger current of 5 mA and a blocking voltage of 250 V.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a PhotoTriac output for direct triac triggering without zero-crossing detection logic.
• Provides high-voltage isolation between input and output circuits via internal optical coupling.
• Designed for surface-mount installation using a compact 6-pin SMD-DIP form factor.

Triac, SCR Output Optoisolators Applications

• Solid-state relay control circuits
• AC motor speed control systems
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

This component is classified as obsolete and is no longer actively manufactured by onsemi. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Buyers must confirm the specific manufacturing date code and physical condition before acquisition, as availability is limited and subject to existing inventory levels rather than new production runs.

Triac, SCR Output Optoisolators Selection Notes

Engineers selecting this part should note its non-zero-crossing characteristic, which allows for phase-angle control but may generate higher electromagnetic interference compared to zero-crossing variants. The SMD-DIP packaging facilitates automated assembly while maintaining through-hole-like handling. Ensure the application can tolerate the potential noise generation associated with random-phase firing when utilizing this specific optocoupler configuration.

Triac, SCR Output Optoisolators Part Context

The MOC3012FR2M belongs to the MOC301x series of Triac driver optocouplers. It serves as the surface-mount equivalent to the through-hole MOC3012M. This family is widely recognized for providing reliable isolation in AC power switching applications. The FR2M suffix specifically denotes the reel-based surface-mount packaging variant produced by onsemi.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3012SR2M is a confirmed substitute part number. Both components share identical electrical specifications and pinout configurations within the 6-SMD surface-mount package format, allowing for direct replacement in existing designs requiring this specific form factor.

Triac, SCR Output Optoisolators FAQ

Does the MOC3012FR2M include a zero-crossing detection circuit?

No, the MOC3012FR2M does not contain a zero-crossing circuit. It is designed for random-phase triggering of triacs.

What is the isolation voltage rating for this optocoupler?

The MOC3012FR2M provides an isolation voltage of 5300 Vrms between the input LED and the output PhotoTriac.