FOD4116SD

Triac, SCR Output Optoisolators Overview

The FOD4116SD is a zero-crossing triac driver optoisolator manufactured by Fairchild Semiconductor. It features a high-efficiency infrared emitting diode coupled with a zero-crossing detection circuit and a triac output stage, housed in a 6-SMD surface-mount package. The device provides electrical isolation of 5000Vrms between input and output circuits. Key electrical parameters include a maximum repetitive peak off-state voltage of 800V for the triac output and a forward current of up to 300mA. The nominal input voltage is 1.25V, with a maximum input voltage of 1.5V.

Triac, SCR Output Optoisolators Feature Summary

• Integrates zero-crossing detection to minimize electromagnetic interference during switching
• Utilizes a high-efficiency infrared LED for improved trigger sensitivity
• Provides robust galvanic isolation via a single-channel optical path

Triac, SCR Output Optoisolators Applications

• Solid-state relay control circuits
• AC motor speed control systems
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'SD' indicates the surface-mount variant when sourcing. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing standards. Ensure the supplier provides original manufacturer documentation to validate the part number authenticity and traceability.

Triac, SCR Output Optoisolators Selection Notes

Select this component when surface-mount assembly is required for zero-crossing triac driving applications. Compare against through-hole equivalents like the FOD4116 if PCB layout constraints differ. Ensure the load voltage does not exceed the 800V rating and that the control logic aligns with the zero-crossing timing characteristics.

Triac, SCR Output Optoisolators Part Context

This device belongs to the FOD411x family of zero-crossing triac drivers from Fairchild Semiconductor (now ON Semiconductor). The family includes through-hole DIP versions such as the FOD4116 and FOD4118. The SD suffix specifically denotes the surface-mount package configuration, offering space-saving benefits for modern electronics while maintaining the same functional performance as its DIP counterparts.

Triac, SCR Output Optoisolators Replacement Considerations

The FOD4116S serves as the direct through-hole replacement for the FOD4116SD. Verify pin compatibility and package dimensions before substitution. Other zero-crossing triac drivers may require circuit adjustments due to differing trigger sensitivities or isolation voltages.