MOC3072M

Triac, SCR Output Optoisolators Overview

The MOC3072M is a single-channel, random-phase Triac driver optocoupler from onsemi's MOC series. It features a 6-pin DIP package with surface mount or through-hole compatibility depending on the specific suffix variant, though the base model typically denotes DIP-6. The device provides electrical isolation with an insulation voltage of 4170 Vrms. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.5 V, and a peak repetitive off-state voltage (VDRM) of 800 V for the output Triac. It operates within a temperature range of -40°C to +85°C and complies with UL1577 and DIN EN/IEC60747-5-5 standards.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a gallium arsenide infrared LED emitter with a sensitive gate Triac detector for efficient triggering.
• Provides high-voltage isolation between input and output circuits without requiring zero-crossing detection.
• Designed for direct interface with logic devices to control AC power loads in random-phase applications.

Triac, SCR Output Optoisolators Applications

• Solid-state relays for AC load switching
• Motor speed control circuits
• Lighting dimmer controls

Triac, SCR Output Optoisolators Procurement Notes

Verify the exact package type and pin configuration against the specific orderable part number, as suffixes may indicate variations in lead frame material or packaging format. Confirm that the selected variant meets the required thermal dissipation capabilities for the intended application environment. Ensure compliance with relevant safety certifications such as UL or IEC if used in isolated power supplies or mains-connected equipment.

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 of the output Triac for appropriate voltage margins. Evaluate the 60 mA maximum forward current limit to ensure proper LED drive circuit design. Check mechanical footprint constraints against the 6-pin DIP outline provided in the datasheet.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3072M series of Triac & SCR Output Optocouplers by onsemi. It is part of a family designed for general-purpose AC power control applications where galvanic isolation is necessary. The series distinguishes itself by offering random-phase triggering, allowing phase-angle control for precise power regulation in resistive and inductive loads.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes include other random-phase Triac driver optocouplers with similar isolation voltages and trigger characteristics. Verify pinout compatibility and thermal resistance values before substitution. Ensure the replacement part supports the same operating temperature range and meets identical safety certification requirements for the target assembly.