FOD4216V

Triac, SCR Output Optoisolators Overview

The FOD4216V is a random phase triac output optocoupler from onsemi, featuring an infrared emitting diode coupled to a hybrid triac. It provides 5000 Vrms isolation and supports a maximum continuous output current of 300 mA with a peak off-state voltage (VDRM) of 600 V. The device operates without a zero-crossing circuit, enabling snubberless applications. Key electrical parameters include a forward current of 30 mA, forward voltage of 1.28 V, and power dissipation of 500 mW. It functions within a temperature range of -55°C to +100°C and is housed in a PDIP-6 package.

Triac, SCR Output Optoisolators Feature Summary

• Random phase triac output design enables snubberless operation for direct AC load control
• High insulation capability with 5000 Vrms isolation rating between input and output
• Hybrid construction integrates infrared LED with triac for reliable signal transmission

Triac, SCR Output Optoisolators Applications

• Solid state relays for industrial switching
• Motor control circuits requiring AC phase control
• Heater control systems in home appliances

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'V' against the manufacturer's official datasheet to confirm compliance with RoHS directives and lead time requirements. Ensure the PDIP-6 through-hole package matches the target PCB footprint. Cross-reference the 600 V off-state voltage rating with application stress levels to prevent breakdown during transient events.

Triac, SCR Output Optoisolators Selection Notes

Select this component when snubberless operation is required for random phase triac firing. The 600 V VDRM rating suits medium-voltage AC loads. Compare against the FOD4218V if higher voltage blocking (800 V) is necessary. Ensure the 300 mA continuous current capacity meets the load requirements. Verify that the absence of zero-crossing detection aligns with the phase-control strategy.

Triac, SCR Output Optoisolators Part Context

The FOD4216V belongs to the FOD4216 series of triac and SCR output optocouplers. This family includes variants like the FOD4218V, which offers higher voltage ratings. These devices are designed for high-reliability isolation in power electronics, providing galvanic separation while controlling AC power stages directly.

Triac, SCR Output Optoisolators Replacement Considerations

The FOD4218V is a confirmed substitute offering identical functionality but with an increased off-state voltage rating of 800 V compared to the 600 V of the FOD4216V.