What this triac-output opto does for a motor-drive or lighting BOM
The FOD4216SD is a single-channel, non-zero-crossing triac-output optoisolator from onsemi. It delivers 5000 Vrms isolation and blocks 600 V off-state. The 10 kV/µs minimum static dV/dt keeps the output from false-triggering on fast voltage edges. The 1.3 mA max LED trigger current means a 3.3 V or 5 V GPIO can drive it directly through a series resistor, no external transistor. Turn-on time is 60 µs typical, fast enough for 50/60 Hz phase-angle control but not for high-frequency PWM. The 500 µA hold current is standard for triac-output parts; if your load draws less than that at the zero-cross, the triac may drop out — check your minimum load current.
Package and mounting — 6-SMD Gull Wing on a reel
The part comes in a 6-SMD Gull Wing package, surface-mount only. onsemi offers it in Tape & Reel (TR) or Cut Tape (CT) options — the reel is the production-friendly format for pick-and-place; Cut Tape is for prototypes or small batches. The Gull Wing leads give good visual solder-joint inspection, but the 6-pin body is small enough that a solder stencil aperture for the centre pad (if present) should be verified against the onsemi footprint drawing.
Lifecycle and compliance — active, ROHS3, no EOL signal
onsemi lists the FOD4216SD as Active with ROHS3 compliance. The approvals include cUL, FIMKO, and UL — these cover North American and European safety standards for reinforced insulation in mains-connected equipment.
Sourcing and availability — quoted per RFQ
No stock-holding claim is made here; the part is sourced to order. The Tape & Reel option is the standard production reel; if you need Cut Tape for a prototype run, that is also available through the same supply channel.