MOC3082FM

Triac, SCR Output Optoisolators Overview

The MOC3082FM is a zero-crossing triac output optocoupler manufactured by onsemi. It features a gallium arsenide infrared LED coupled to a triac detector, providing electrical isolation with a high insulation voltage of 7500 Vrms. The device operates within a temperature range of -40°C to 85°C and is housed in a 6-SMD gull-wing package. Key electrical parameters include a peak repetitive off-state voltage of 800V, a minimum static dV/dt of 600V/µs, and a typical forward voltage of 1.3V. It supports a maximum DC forward current of 60mA and includes built-in zero-crossing detection for reduced electromagnetic interference.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry minimizes electromagnetic interference during switching
• High insulation voltage capability ensures robust safety isolation between input and output circuits
• Gallium arsenide infrared LED provides efficient optical coupling with low power consumption
• Triac output stage designed for direct driving of AC loads in solid-state relay applications

Triac, SCR Output Optoisolators Applications

• Solid-state relays for AC load control
• Motor control circuits requiring phase-angle or zero-crossing triggering
• Industrial automation systems for AC power switching
• Heating element control in commercial appliances

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix FM against the manufacturer's latest datasheet to confirm pinout and insulation ratings. Ensure compatibility with PCB footprint requirements for the 6-SMD gull-wing package. Check for RoHS compliance status as per current environmental declarations. Confirm availability through authorized distributors to avoid counterfeit components. Review handling precautions for moisture sensitivity level classification during storage and reflow soldering processes.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high-voltage isolation and low EMI are critical for AC switching applications. The zero-crossing feature makes it suitable for noise-sensitive environments compared to random-phase alternatives. Consider the 800V blocking voltage for standard mains voltage applications. Evaluate thermal management requirements based on the operating temperature range and package thermal resistance. Compare against similar models like MOC3082M if different packaging or insulation ratings are needed.

Triac, SCR Output Optoisolators Part Context

The MOC3082FM belongs to the MOC308x series of zero-crossing triac output optocouplers from onsemi. This family is widely used in industrial and consumer electronics for isolating control signals from high-voltage AC lines. The FM variant specifically denotes the 6-SMD surface-mount package configuration. It complements other variants such as MOC3082SVM which may offer different insulation characteristics or packaging options within the same functional family.

Triac, SCR Output Optoisolators Replacement Considerations

• MOC3082M
• MOC3082SVM

Triac, SCR Output Optoisolators FAQ

What is the insulation voltage rating of the MOC3082FM?

The MOC3082FM has an insulation voltage rating of 7500 Vrms.

Does the MOC3082FM support zero-crossing detection?

Yes, the MOC3082FM includes an integrated zero-crossing detection circuit to minimize electromagnetic interference.

What is the maximum peak repetitive off-state voltage for this device?

The maximum peak repetitive off-state voltage is 800V.