FOD4118TV

Triac, SCR Output Optoisolators Overview

The FOD4118TV is a high dv/dt zero-crossing triac driver optocoupler manufactured by onsemi. It features an infrared emitting diode coupled to a hybrid triac output, providing 5000Vrms isolation in a 6-DIP package. Key electrical parameters include a maximum turn-on time of 60µs, a peak repetitive off-state voltage of 800V, and a static dV/dt rating of 10kV/µs. The device supports a maximum DC forward current of 30mA and includes an integrated over-zero detection circuit for snubberless operation.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuit enables snubberless operation with triacs
• High common-mode transient immunity rated at 10kV/µs minimizes false triggering
• Hybrid triac output structure provides robust switching performance
• Certified for safety standards including VDE, UL, and CSA

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) designs requiring snubberless triac control
• Industrial motor control systems utilizing AC power switching
• General-purpose AC load switching applications
• Power supply circuits requiring isolated triac gate driving

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'TV' indicates tape-and-reel packaging rather than bulk, as this affects handling procedures. Confirm RoHS compliance status and REACH declaration requirements for your region. Check for obsolescence notices or last-time-buy dates from onsemi, as previous variants like the non-TV version may be discontinued. Ensure the 6-DIP footprint matches your PCB layout constraints.

Triac, SCR Output Optoisolators Selection Notes

Select the FOD4118TV when snubberless operation is required to reduce component count and improve reliability. The 800V off-state voltage rating suits most standard AC line applications. Compare against the FOD4116TV if a lower voltage rating (600V) is sufficient for the specific application. Ensure the 1.3mA trigger current capability aligns with the LED drive circuit design.

Triac, SCR Output Optoisolators Part Context

This component belongs to the FOD410/4108/4116/4118 family of high dv/dt zero-cross triac drivers. These devices are designed to replace discrete optocouplers and triac driver combinations. The TV suffix typically denotes a specific packaging variant within this product line, often indicating reel packaging for automated assembly processes.

Triac, SCR Output Optoisolators Replacement Considerations

The FOD4118T is listed as obsolete; the FOD4118TV serves as the direct active replacement. Cross-reference with Vishay IL4118-X006 for pin-compatible alternatives if onsemi supply is unavailable. Verify that substitute parts maintain the same 10kV/µs dV/dt rating and zero-crossing functionality.