FODM3083R2

Triac, SCR Output Optoisolators Overview

The FODM3083R2 is a single-channel Triac output optocoupler from onsemi, designed for zero-crossing detection in AC power control applications. It features a Mini-Flat (Miniflat) surface-mount package with four pins. Key electrical parameters include an isolation voltage of 3750 Vrms and a maximum repetitive peak off-state voltage (VDRM) of 800 V. The device supports a maximum continuous output current of 70 mA and operates within a temperature range of -40°C to +100°C. It requires a maximum trigger current of 5 mA and has a forward voltage of 1.5 V at a forward current of 60 mA.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a dedicated zero-crossing circuit to minimize switching noise and electromagnetic interference during AC load commutation.
• Provides high-voltage isolation between input and output circuits to ensure safety in mains-connected systems.
• Utilizes a compact surface-mount Mini-Flat package suitable for automated assembly and space-constrained designs.

Triac, SCR Output Optoisolators Applications

• Solid-state relays for industrial and commercial AC load switching
• Motor control interfaces for small AC motors
• Lighting control systems including dimmers and smart bulbs
• Heating element control in home appliances

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'R2' corresponds to the required tape-and-reel packaging configuration when ordering. Confirm that the 800 V blocking voltage rating aligns with the peak line voltage of the target application. Ensure the 70 mA output current capability meets the gate drive requirements of the controlled triac or SCR. Check for compliance with relevant safety certifications such as UL and C-UL if used in regulated equipment.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing functionality is critical to reduce electrical stress on loads and prevent radio frequency interference. The 3750 Vrms isolation rating makes it suitable for direct connection to mains voltage side circuits. Consider the Mini-Flat package dimensions for PCB layout constraints. Compare against non-zero-crossing variants if phase-angle firing is required instead of burst-fire control.

Triac, SCR Output Optoisolators Part Context

This device belongs to the FODM30 series of Triac output optocouplers by onsemi. The series is characterized by integrated zero-crossing detection circuits, distinguishing it from standard logic output or non-zero-crossing TRIAC outputs. It is part of onsemi's portfolio of isolation components designed for robust performance in AC power management applications.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference guides for equivalent devices with matching isolation voltages and zero-crossing capabilities.