component

FOD817AS

Public Made by Adom

by adom

onsemi Transistor, Photovoltaic Output Optoisolators, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FOD817AS

onsemi · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm

FOD817AS from onsemi, in a SOP-4-2.54mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ANODE passive Anode of the infrared LED emitter, with continuous forward current limited to 50 mA (IF absolute maximum) and reverse voltage to 6 V.
2 CATHODE passive Cathode of the infrared LED emitter, with reverse voltage limited to 6 V (VR absolute maximum).
3 EMITTER passive Emitter of the silicon phototransistor, with emitter-collector voltage limited to 6 V (VECO absolute maximum).
4 COLLECTOR passive Collector of the silicon phototransistor, with collector-emitter voltage limited to 70 V (VCEO) and collector current to 50 mA (IC).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOP-4-2.54mm
Category Optoisolators
Pins 4

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Profile Feature Pb-Sn solder assembly Lead Free assembly Preheat condition 8

CAD (KiCad official)

  • Symbol: FOD817AS
  • Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
  • 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
  • 3D model files: fod817as-etched.step / fod817as-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fod817as.step / fod817as.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (9 pp, sha256 33883573f452cf5c, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF