FOD4216S

Triac, SCR Output Optoisolators Overview

The FOD4216S is a single-channel, random-phase Triac output optocoupler from onsemi. It integrates an infrared emitting diode with a hybrid random phase Triac. Key electrical parameters include a maximum continuous output current of 300 mA and an off-state voltage (VDRM) of 600 V. The device features an isolation voltage of 5000 Vrms and operates within a temperature range of -55°C to +100°C. Triggering characteristics specify a maximum trigger current of 1.3 mA and a maximum turn-on time of 60 µs. The forward voltage is typically 1.28 V at a forward current of 30 mA, with a power dissipation rating of 500 mW.

Triac, SCR Output Optoisolators Feature Summary

• Random-phase Triac output configuration for AC load control without zero-crossing detection
• High insulation capability with 5000 Vrms isolation voltage
• Low trigger sensitivity requiring a maximum trigger current of 1.3 mA
• Snubberless operation design suitable for direct AC switching applications

Triac, SCR Output Optoisolators Applications

• Solid state relays for AC power switching
• Motor speed control circuits
• Lighting dimmer applications
• Industrial process control systems

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'S' indicates the SMD-DIP-6 surface mount package variant when ordering. Confirm that the required isolation voltage and off-state voltage ratings meet the circuit's safety and operational requirements. Ensure the random-phase characteristic aligns with the application's need for immediate triggering upon input signal presence rather than zero-crossing synchronization.

Triac, SCR Output Optoisolators Selection Notes

Select this component for applications requiring random-phase triac output in a compact surface mount format. The low trigger current facilitates drive from standard logic interfaces. Verify thermal management capabilities given the 500 mW power dissipation limit. Consider the 600 V off-state voltage rating against the peak line voltage of the AC load being controlled.

Triac, SCR Output Optoisolators Part Context

The FOD4216S belongs to the FOD4216 series of Triac and SCR output optocouplers manufactured by onsemi. This series utilizes a high-efficiency infrared emitting diode coupled to a hybrid random phase Triac. The devices are designed for robust isolation and reliable AC switching performance in industrial and consumer electronics environments.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.