FOD4208SV

Triac, SCR Output Optoisolators Overview

The FOD4208SV is a single-channel Triac output optocoupler manufactured by onsemi. It integrates an infrared emitting diode coupled to a hybrid random phase triac in a surface-mount package. Key electrical specifications include a maximum continuous output current of 300 mA, a repetitive peak off-state voltage (VDRM) of 800 V, and an isolation voltage rating of 5000 Vrms. The device operates with a forward current up to 30 mA and features a typical turn-on time of 60 µs. It supports a wide operating temperature range from -55°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Random phase triggering capability for flexible AC load control without zero-crossing detection constraints
• High insulation voltage rating of 5000 Vrms for robust galvanic isolation between input and output circuits
• Snubberless design simplifies circuit architecture by eliminating the need for external snubber networks

Triac, SCR Output Optoisolators Applications

• Solid state relays for industrial switching applications
• Motor control interfaces requiring isolated triac driving
• AC power switching modules in consumer appliances

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'SV' confirms the surface-mount variant against datasheet documentation. Confirm package type matches design requirements. Check RoHS compliance status via official manufacturer resources. Ensure ordering quantities align with factory lead times. Validate pinout compatibility during PCB layout finalization.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random phase triac control is required rather than zero-crossing operation. Consider the 800 V blocking voltage for standard AC line applications. Evaluate thermal management needs given the 500 mW power dissipation limit. Compare physical dimensions against available board space constraints. Verify isolation voltage meets safety standards for the target application environment.

Triac, SCR Output Optoisolators Part Context

This device belongs to the FOD4208 family of Triac and SCR output optocouplers. It shares functional similarities with through-hole variants like the FOD4208TV but utilizes a surface-mount form factor. The series is designed for general-purpose AC power switching where compact size and high isolation are critical.

Triac, SCR Output Optoisolators Replacement Considerations

Cross-reference with FOD4208TV for through-hole equivalent functionality. Verify pinout and package dimensions differ significantly between SV and TV suffixes. Ensure electrical parameters match system requirements before substitution.