MOC3042FM

Triac, SCR Output Optoisolators Overview

The MOC3042FM is a single-channel zero-crossing optoisolator from the MOC series, manufactured by onsemi. It features a 6-SMD (gull-wing) package and provides 7500Vpk isolation voltage. The device includes an integrated zero-crossing circuit for low EMI switching of AC loads. Key electrical parameters include a maximum DC forward input current of 60 mA, a peak off-state voltage of 400 V, and a typical holding current of 400 µA. The component operates within a temperature range of -40°C to 85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for reduced electromagnetic interference during AC load switching
• High isolation capability with 7500Vpk dielectric strength between input and output sections
• Triac output stage designed for direct control of power devices in AC applications

Triac, SCR Output Optoisolators Applications

• Solid state relays for AC power control
• Motor speed control circuits
• Lighting dimmer systems

Triac, SCR Output Optoisolators Procurement Notes

Verify component status carefully as this part may be obsolete or discontinued. Confirm availability through authorized distributors only. Ensure the specific suffix matches design requirements. Check for valid replacement options if supply is limited. Validate datasheet revisions before finalizing procurement plans.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize noise in AC circuits. The 6-SMD package suits surface-mount assembly processes. Ensure the 400V peak off-state voltage meets load requirements. Verify isolation voltage ratings against safety standards applicable to the target equipment design.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC series of optoisolators produced by onsemi. It is specifically categorized as a Triac output optoisolator with SCR output capabilities. The family focuses on providing reliable isolation for controlling high-power AC devices from low-voltage logic circuits.

Triac, SCR Output Optoisolators Replacement Considerations

MOC3042SR2VM is listed as a similar replacement option.