IL4108-X017

Overview

The IL4108-X017 is a phototriac output optocoupler featuring a GaAs infrared LED coupled to a photosensitive zero-crossing TRIAC network. It provides electrical isolation between low-voltage logic circuits and AC mains lines operating at 120V, 240V, or 380V. The device offers high common-mode transient immunity and includes integrated zero-crossing detection for reduced electromagnetic interference during switching.

Feature Summary

• Integrated zero-crossing detection for noise reduction
• High dv/dt immunity for reliable operation
• Optical coupling of GaAs IRLED to TRIAC

Applications

• Solid-state relay control
• Mains-powered appliance switching
• Motor speed control circuits

Procurement Notes

Verify the specific suffix X017 against the manufacturer datasheet to confirm packaging configuration and tape-and-reel specifications. Ensure compliance with safety agency certifications required for your target market before finalizing procurement orders.

Selection Notes

Select this component when zero-crossing switching is mandatory to minimize inrush current and EMI. Verify that the input forward current requirements align with your microcontroller GPIO capabilities and that the isolation voltage rating meets system safety standards.

Part Context

This part belongs to the IL410/IL4108 family of optocouplers designed for AC line interfacing. It shares architectural similarities with other Vishay phototriac outputs but is distinguished by its specific zero-crossing characteristics and package variant defined by the X017 suffix.

Replacement Considerations

Consult official substitution guides for equivalent zero-crossing phototriac optocouplers from Vishay or other manufacturers ensuring matching isolation voltage and package footprint compatibility.