MOC3031SMT&R

Triac, SCR Output Optoisolators Overview

The MOC3031SMT&R is a surface-mount optoisolator manufactured by Isocom Components 2004 LTD. It features a single channel with a triac output designed for zero-crossing switching applications. The device provides an isolation voltage of 7.5 kVrms and operates within a standard surface mount DIP package configuration containing six pins.

Triac, SCR Output Optoisolators Feature Summary

• Integrated triac output stage optimized for AC power control
• Zero-crossing detection mechanism to minimize electrical noise
• High isolation voltage rating for safety compliance

Triac, SCR Output Optoisolators Applications

• AC power switching circuits
• Solid-state relay interfaces
• Motor speed control systems

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer designation carefully, as this component is listed under Isocom Components 2004 LTD in distributor databases. Confirm the suffix R&T indicates tape and reel packaging. Ensure the part number matches the specific zero-crossing triac variant required for your circuit design rather than non-zero-crossing alternatives.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to reduce electromagnetic interference in AC loads. The surface-mount package suits automated assembly processes. Verify that the load current and voltage ratings exceed the maximum operating conditions of the connected AC equipment to ensure reliable long-term performance.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC3031 family of optoisolators. It serves as a solid-state interface between low-voltage control logic and high-voltage AC mains. The surface-mount variant facilitates compact PCB layouts compared to through-hole equivalents while maintaining equivalent electrical isolation characteristics.

Triac, SCR Output Optoisolators Replacement Considerations

MOC3031SR2M is a confirmed substitute part number available from onsemi.