FOD410SD

Triac, SCR Output Optoisolators Overview

The FOD410SD is a Triac and SCR Output Optocoupler manufactured by onsemi, designed for driving triacs in AC power control applications. It features a PhotoTriac output with integrated zero-crossing circuitry to minimize electromagnetic interference during switching. The device operates within a temperature range of -55°C to +100°C and provides an isolation voltage of 5000 Vrms. Key electrical parameters include a maximum continuous output current of 300 mA, a blocking voltage (VDRM) of 800 V, and a forward current of 30 mA. It utilizes a 6-pin SMD-DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry reduces grid interference by triggering at voltage zero points
• High static dv/dt capability ensures stable operation against rapid voltage transients
• High trigger sensitivity allows reliable activation with low input drive currents
• Robust insulation performance meets safety standards for high-voltage isolation

Triac, SCR Output Optoisolators Applications

• Solid-state relay designs requiring galvanic isolation
• AC motor speed control systems
• Lighting dimmer circuits for residential or commercial use
• Heater control modules in industrial appliances

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'SD' corresponds to the surface-mount DIP variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected packaging format matches the intended assembly process requirements. Cross-reference the datasheet revision date to validate parameter accuracy against current production versions.

Triac, SCR Output Optoisolators Selection Notes

Select this component for applications requiring precise zero-crossing switching to reduce noise. The 800 V blocking voltage suits standard AC line voltages. Consider the 6-pin SMD-DIP form factor for space-constrained PCB layouts. Evaluate the 300 mA output current capacity against the load requirements of the external triac being driven to ensure adequate margin.

Triac, SCR Output Optoisolators Part Context

This part belongs to the FOD410 series of high dv/dt zero-cross triac drivers from onsemi. The series includes variants like FOD4108 and FOD4118, differentiated by blocking voltage and trigger sensitivity. The FOD410SD specifically denotes the surface-mount dip configuration within this family, offering consistent performance characteristics across the lineup for AC power control interfaces.

Triac, SCR Output Optoisolators Replacement Considerations

Compatible substitutes within the same family include FOD4108SDV, which offers higher blocking voltage. Verify pinout compatibility and thermal characteristics before substitution. Check if alternative manufacturers offer equivalent zero-cross triac drivers with matching isolation ratings and package dimensions.