FODM3012R4

Triac, SCR Output Optoisolators Overview

The FODM3012R4 is a single-channel Triac output optoisolator from onsemi, designed for high-voltage isolation applications. It features a 3750Vrms isolation voltage and operates within a temperature range of -40°C to 100°C. The device utilizes a 4-SMD MFP package with鸥翼 (gull-wing) leads. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.2V, and a peak repetitive off-state voltage of 250 V. It lacks an internal zero-crossing circuit, making it suitable for phase control applications requiring external timing.

Triac, SCR Output Optoisolators Feature Summary

• Provides robust electrical isolation between input and output circuits via optical coupling.
• Features a Triac output stage capable of driving AC loads directly in low-power scenarios.
• Designed without integrated zero-crossing detection for flexible phase-angle control applications.

Triac, SCR Output Optoisolators Applications

• Solid-state relays for AC load switching
• Phase control circuits for motor speed regulation
• Lighting dimmer controls

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix R4 confirms the tape and reel packaging format. Confirm the 250 V off-state voltage rating matches the application requirements, as variants may differ. Check for end-of-life status or obsolescence notices from onsemi before finalizing design-in decisions.

Triac, SCR Output Optoisolators Selection Notes

Select this component when a non-zero-crossing Triac output is required for precise phase control. Ensure the 250 V blocking voltage exceeds the peak line voltage of the target AC system. Verify that the 3750Vrms isolation rating meets safety standards for the intended enclosure environment.

Triac, SCR Output Optoisolators Part Context

This part belongs to the FODM30XX series of Triac output optoisolators. It shares functional similarities with models like FODM3022R4 but differs in specific voltage ratings and package configurations. The series is commonly used in industrial and consumer electronics for isolated AC switching.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes include FODM3022R4, though verification of the 250 V vs 400 V off-state voltage rating is critical. Other FODM30XX family members may serve as alternatives if pinout and isolation ratings are compatible.