FOD4118SV

Triac, SCR Output Optoisolators Overview

The FOD4118SV is a six-pin surface-mount triac and SCR output optocoupler manufactured by onsemi. It integrates an infrared emitting diode with a hybrid triac capable of driving discrete triacs. 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 and robust dv/dt immunity, suitable for industrial control applications requiring reliable phase control.

Triac, SCR Output Optoisolators Feature Summary

• Integrates an infrared LED coupled to a hybrid triac for discrete triac driving
• Features zero-crossing detection to minimize electromagnetic interference during switching
• Supports snubberless operation, removing the requirement for external RC snubber circuits
• Provides high common-mode transient immunity for noise-resistant signal isolation

Triac, SCR Output Optoisolators Applications

• Industrial motor control systems
• Solid-state relay designs
• AC power switching applications
• Phase angle control circuits

Triac, SCR Output Optoisolators Procurement Notes

Verify the suffix SV indicates the specific SMD-DIP-6 bulk packaging configuration. Confirm RoHS compliance status through official documentation. Ensure the selected variant matches the required isolation voltage ratings for the target application environment. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Triac, SCR Output Optoisolators Selection Notes

Select this component when snubberless operation and zero-crossing functionality are required in a compact surface-mount package. Consider the thermal characteristics of the SMD-DIP-6 form factor for PCB layout. Evaluate the isolation voltage requirements against the system's safety standards. Compare performance metrics with alternative devices if higher current handling or different package styles are needed.

Triac, SCR Output Optoisolators Part Context

This device belongs to the FOD410 series of high dv/dt zero-cross triac drivers from onsemi. It shares architectural similarities with models like the FOD4108SV but differs in specific electrical parameters and packaging options. The series is designed for applications demanding reliable isolation between control logic and high-voltage AC loads.

Triac, SCR Output Optoisolators Replacement Considerations

The FOD4108SV is a documented substitute within the same product family. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the replacement part meets all isolation and voltage rating requirements of the original design.