FODM3021R2V

Triac, SCR Output Optoisolators Overview

The FODM3021R2V is a single-channel Triac output optocoupler manufactured by Fairchild Semiconductor. It features a Mini-Flat surface-mount package with four pins. Key electrical parameters include a maximum forward voltage of 1.5V, a maximum input current of 60 mA, and an isolation voltage of 3750 Vrms. The device provides a peak repetitive off-state voltage (VDRM) of 400V and supports a maximum continuous output current of 70 mA. It operates without a zero-crossing circuit and has a power dissipation rating of 300 mW.

Triac, SCR Output Optoisolators Feature Summary

• Provides high-voltage isolation between control circuits and triac loads
• Designed for direct driving of triacs in AC switching applications
• Utilizes a compact surface-mount Mini-Flat package for space-constrained designs

Triac, SCR Output Optoisolators Applications

• Solid-state relay drivers
• AC motor speed control circuits
• Lighting dimmer controls

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix R2V to confirm the tape-and-reel packaging variant. Confirm that the component is sourced from authorized distributors to ensure authenticity, as this part may be subject to obsolescence or replacement by newer generations. Check RoHS compliance status against the specific manufacturing date code.

Triac, SCR Output Optoisolators Selection Notes

Select this component when a non-zero-crossing triac driver is required for phase-angle control applications. Ensure the load voltage does not exceed the 400V VDRM rating. Verify that the PCB layout accommodates the Mini-Flat footprint and that the thermal environment supports the 300 mW power dissipation limit.

Triac, SCR Output Optoisolators Part Context

This device belongs to the FODM3021 family of optocouplers. It serves as a solid-state alternative to mechanical relays for AC load switching. The absence of a zero-crossing feature allows for precise phase control, distinguishing it from variants designed for soft-switching to reduce electromagnetic interference.

Triac, SCR Output Optoisolators Replacement Considerations

FODM3021R2

Triac, SCR Output Optoisolators FAQ

Does the FODM3021R2V include a zero-crossing detection circuit?

No, the FODM3021R2V is designed without a zero-crossing circuit, making it suitable for phase-angle control applications.

What is the maximum isolation voltage of this optocoupler?

The device offers an isolation voltage of 3750 Vrms between the input LED and the output Triac.