FOD4108SV

Triac, SCR Output Optoisolators Overview

The FOD4108SV is a six-pin surface-mount triac output optocoupler manufactured by onsemi. It integrates an infrared emitting diode with a hybrid triac capable of driving discrete triacs and SCRs. The device features zero-crossing detection for low electromagnetic interference switching and snubberless operation, eliminating the need for external RC networks. It provides high isolation voltage of 5000 Vrms and supports VDE 800 standards. The component is designed for AC power control applications requiring reliable gate triggering.

Triac, SCR Output Optoisolators Feature Summary

• Integrates infrared LED with hybrid triac for discrete triac and SCR drive
• Features zero-crossing detection to minimize electromagnetic interference during switching
• Supports snubberless operation, removing requirement for external RC snubber circuits
• Provides high electrical isolation with 5000 Vrms rating and VDE 800 compliance

Triac, SCR Output Optoisolators Applications

• AC power control systems
• Solid-state relay drivers
• Motor speed control circuits
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix SV indicates the surface mount DIP-6 package configuration when sourcing. Confirm that the device meets VDE 800 insulation requirements if used in regions mandating this standard. Ensure input current parameters align with the driving logic level to guarantee proper triggering of the internal hybrid triac structure without exceeding absolute maximum ratings.

Triac, SCR Output Optoisolators Selection Notes

Select this component for applications requiring isolated control of AC loads with minimal external passive components due to its snubberless capability. The zero-crossing feature makes it suitable for noise-sensitive environments. Consider the surface mount package constraints and thermal management requirements associated with the SMD-DIP-6 form factor during PCB layout design.

Triac, SCR Output Optoisolators Part Context

This part belongs to the FOD4108 series of triac output optocouplers from onsemi. The series is engineered for robust AC switching performance. The FOD4108SV variant specifically denotes the surface mount version, offering compatibility with automated assembly processes while maintaining the electrical characteristics of the broader family.

Triac, SCR Output Optoisolators Replacement Considerations

Check datasheets for compatible alternatives within the same series or family that offer identical pinout and electrical specifications. Verify that any substitute maintains the 5000 Vrms isolation rating and snubberless functionality to ensure circuit compatibility.