MOC3052SR2M

Triac, SCR Output Optoisolators Overview

The MOC3052SR2M is a single-channel triac driver optocoupler manufactured by onsemi (formerly Fairchild Semiconductor). It features an AlGaAs infrared emitting diode optically coupled to a non-zero-crossing silicon bilateral AC switch. The device provides electrical isolation with a maximum off-state output voltage of 600 V and an insulation voltage of 4170 Vrms. 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. The component operates within a temperature range of -40°C to +85°C and is housed in a surface-mount SMD-DIP-6 package.

Triac, SCR Output Optoisolators Feature Summary

• Integrates an AlGaAs infrared emitting diode with a non-zero-crossing silicon bilateral AC switch for random-phase control applications.
• Provides high-voltage isolation between low-voltage logic circuits and AC line voltages using a 4170 Vrms insulation barrier.
• Designed to drive triacs, SCRs, and relays in resistive, inductive, or capacitive load environments.

Triac, SCR Output Optoisolators Applications

• Control of resistive, inductive, or capacitive loads including motors and solenoids
• Isolation interface for 115 VAC and 240 VAC line voltage systems
• Driver circuits for large current thyristors, TRIACs, and relays

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer designation carefully, as this part number is associated with both Fairchild Semiconductor and onsemi due to corporate acquisition history. Confirm that the specific suffix matches the required packaging format, such as Reel or Cut Tape, as availability varies by distributor channel. Ensure compliance with RoHS standards if required for the target assembly process.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase triggering is required rather than zero-crossing switching. It is suitable for applications needing 600 V peak blocking capability. Consider the SMD-DIP-6 package constraints for PCB layout. Verify that the 10 mA maximum trigger current aligns with the driving logic source capabilities.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3052M series of 6-pin DIP random-phase optoisolators. It serves as a direct replacement for legacy Fairchild Semiconductor parts in existing designs. The series is widely used in industrial and consumer AC power control modules where galvanic isolation is necessary between control electronics and mains-powered loads.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include MOC3052FR2VM and MOC3052SR2VM. These variants share identical functional specifications but may differ in manufacturing origin or minor packaging details. Cross-reference datasheets to ensure pinout compatibility and thermal characteristics match the original design requirements.