FOD4116

Triac, SCR Output Optoisolators Overview

The FOD4116 is a zero-crossing triac driver optoisolator manufactured by Fairchild Semiconductor. It features a 5000Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum forward trigger current of 1.3mA, an off-state voltage of 600V, and a hold current of 500µA. The device is housed in a 6-pin DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection for reduced electromagnetic interference
• High isolation voltage capability for safety-critical applications
• Snubberless design simplifies circuit implementation

Triac, SCR Output Optoisolators Applications

• Solid-state relay drivers
• AC power control circuits
• Industrial motor controls

Triac, SCR Output Optoisolators Procurement Notes

This component is officially discontinued and not in production by Fairchild Semiconductor. Sourcing should focus on verified surplus stock or authorized distributors holding remaining inventory. Verify part authenticity carefully due to the obsolete status and potential availability of counterfeit units in the secondary market.

Triac, SCR Output Optoisolators Selection Notes

Engineers requiring this specific zero-crossing functionality must evaluate available replacement options from other manufacturers. Consider compatibility with existing PCB footprints and ensure that substitute devices meet the required isolation voltage and thermal performance specifications for the target application environment.

Triac, SCR Output Optoisolators Part Context

The FOD4116 belongs to a family of snubberless triac drivers designed for AC switching applications. It integrates an LED input with a triac output stage optimized for direct gate driving without external snubber networks, distinguishing it from standard optotriacs that may require additional protection components.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitutes include the FOD4108 and FOD4118 from the same series. Cross-reference pinouts and electrical characteristics to ensure functional equivalence before integration into new designs.