MOC3072SM

Triac, SCR Output Optoisolators Overview

The MOC3072SM is a surface-mount optocoupler from onsemi's MOC series, featuring a single channel and six pins. It integrates an infrared LED with a photo-triac output for zero-voltage crossing switching applications. Key electrical parameters include a maximum forward voltage of 1.5V, a maximum input current of 60mA, and an isolation voltage of 4.17kVrms. The device supports a peak repetitive off-state voltage of 800V and operates within a temperature range of -40°C to +85°C. It complies with DIN EN/IEC60747-5-5 and UL1577 standards.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a photo-triac output with zero-voltage crossing detection circuitry for low-noise switching.
• Provides high insulation capability with a rated isolation voltage of 4.17kVrms.
• Designed for surface-mount technology (SMT) installation in compact electronic assemblies.

Triac, SCR Output Optoisolators Applications

• Solid-state relay driver circuits
• Motor control systems requiring isolated switching
• Industrial process control equipment

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and tape/reel specifications. Ensure compliance with RoHS directives and check for recent Product Change Notifications (PCN) regarding manufacturing site or material updates. Confirm that the selected variant matches the required isolation voltage ratings for the target application safety standards.

Triac, SCR Output Optoisolators Selection Notes

Select this component when surface-mount packaging is required for triac driver applications. The MOC3072SM offers zero-crossing functionality to reduce electromagnetic interference during AC load switching. Consider the 800V output rating and 4.17kV isolation barrier for appropriate voltage levels. Verify thermal management requirements within the specified -40°C to +85°C operating range.

Triac, SCR Output Optoisolators Part Context

The MOC3072SM belongs to onsemi's MOC family of optocouplers, specifically designed for driving triacs and SCRs. This series provides galvanic isolation between control circuits and high-power AC loads. The SM suffix indicates a surface-mount package variant, distinguishing it from through-hole versions like the MOC3072M. These devices are standard components in power electronics for safe interface between low-voltage logic and mains voltages.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3072M is a pin-compatible through-hole alternative within the same product family. Cross-reference with other manufacturers' zero-crossing triac drivers if surface-mount availability is constrained. Ensure substitute parts maintain equivalent isolation voltage and output voltage ratings.