FODM3051R2

Triac, SCR Output Optoisolators Overview

The FODM3051R2 is a random phase triac driver output optocoupler manufactured by Fairchild Semiconductor. It features a 4-pin full pitch mini-flat package with gull wing leads. The device provides electrical isolation of 3750Vrms between input and output circuits. It is designed to drive triacs in AC power control applications, offering high reliability and robust performance for industrial and consumer electronics.

Triac, SCR Output Optoisolators Feature Summary

• Random phase triac driver output capability
• High isolation voltage rating of 3750Vrms
• Compact 4-pin full pitch mini-flat surface mount package

Triac, SCR Output Optoisolators Applications

• AC motor speed control systems
• Solid state relay (SSR) designs
• Industrial process control units

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer marking on the component body to confirm Fairchild Semiconductor origin. Ensure the package matches the 4-SMD Gull Wing specification. Check for RoHS compliance markings if required by assembly standards. Confirm the suffix R2 indicates the specific reel packaging variant as documented in official distributor listings.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random phase triggering is required for AC loads. The 3750Vrms isolation makes it suitable for mains-connected interfaces. Consider the 4-pin mini-flat footprint for space-constrained PCB layouts. Ensure gate current requirements of the driven triac are compatible with the optocoupler output capabilities.

Triac, SCR Output Optoisolators Part Context

This part belongs to the FODM3051 series of optocouplers from Fairchild Semiconductor. The series includes variants such as FODM3051 and FODM3051R3V. These devices are widely used in power electronics for galvanic isolation between low-voltage control logic and high-voltage AC power stages.

Triac, SCR Output Optoisolators Replacement Considerations

Compatible substitutes include FODM3051 and FODM3051R3V from the same product family. Verify pinout compatibility and isolation voltage ratings before substitution. Cross-reference with ON Semi equivalents if Fairchild inventory is unavailable.