MOC3033FM

Triac, SCR Output Optoisolators Overview

The MOC3033FM is a Triac and SCR Output Optocoupler manufactured by onsemi. It features a PhotoTriac output type with one channel, housed in a 6-SMD, Gull Wing package suitable for surface mount installation. The device includes an integrated zero-crossing circuit designed to minimize electromagnetic interference during switching. Key electrical parameters include a maximum off-state voltage (VDRM) of 250 V, an isolation voltage of 7500 Vpk, and a forward current (If) capability up to 60 mA. The component operates within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a hybrid triac coupled with an infrared emitting diode for snubberless operation
• Incorporates internal zero-crossing detection circuitry to reduce noise generation
• Provides high voltage isolation between input and output sides

Triac, SCR Output Optoisolators Applications

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

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix FM against the official datasheet to confirm surface mount compatibility and pinout configuration. Ensure that the 250 V rating aligns with the target AC line voltage requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement decisions.

Triac, SCR Output Optoisolators Selection Notes

Select this component when surface mount technology is required for zero-crossing triac driving applications. Compare the 250 V off-state voltage limit against peak line voltages to ensure adequate safety margins. Evaluate the 7500 Vpk isolation rating against regulatory insulation requirements for the specific end-use environment.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC series of optocouplers from onsemi, specifically designed for controlling triacs and SCRs. It serves as a bridge between low-voltage control logic and high-voltage AC loads. The family is characterized by integrated zero-crossing detection to improve system reliability and reduce electromagnetic interference in power switching scenarios.

Triac, SCR Output Optoisolators Replacement Considerations

Check for direct substitutes such as the MOC3033M or MOC3033FR2M if lead-free or tape-and-reel packaging is preferred. Verify pin compatibility and electrical parameter equivalence before swapping components in existing designs.