MOC3073SR2M

Triac, SCR Output Optoisolators Overview

The MOC3073SR2M is a single-channel Triac and SCR output optocoupler manufactured by onsemi. It features a PhotoTriac output without a zero-crossing circuit, designed for random-phase triggering applications. The device utilizes an SMD/SMT installation style within a 6-pin MDIP package. Key electrical parameters include a maximum forward current of 60 mA, a forward voltage of 1.18 V, and a power dissipation of 330 mW. It provides an isolation voltage of 4170 Vrms and supports an off-state output voltage (VDRM) of 800 V. The component operates within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Provides galvanic isolation between low-voltage control circuits and high-voltage AC loads using a non-zero-crossing triac output architecture.
• Designed for surface-mount assembly in a compact 6-pin MDIP package suitable for automated manufacturing processes.
• Capable of handling peak off-state voltages up to 800 V with high insulation resistance for reliable signal transmission.

Triac, SCR Output Optoisolators Applications

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

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'SR2' against the official datasheet to confirm tape-and-reel packaging specifications and pin configuration. Ensure the selected variant matches the required surface-mount technology requirements for the target PCB design. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability status and lead times prior to finalizing procurement orders.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase triggering is required rather than zero-crossing switching. Consider the 800 V blocking capability and 60 mA input drive limits for compatibility with the load characteristics. Evaluate the thermal performance based on the 330 mW power dissipation rating and the operating temperature range constraints for the intended environment.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3073M series of Triac and SCR output optocouplers from onsemi. The series is engineered for general-purpose isolation tasks where precise timing synchronization is not critical. The SR2 suffix typically denotes specific packaging or reel configurations within the broader product family.

Triac, SCR Output Optoisolators Replacement Considerations

Compatible substitutes include the MOC3073SVM and MOC3073M variants. Verify that alternative parts maintain the same random-phase triac output functionality and equivalent voltage ratings before implementation.