component
FOD817AS
Public Made by Adomby 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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fod817as.step/fod817as.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 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](https://www.onsemi.com/pdf/datasheet/fod817as-d.pdf) (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](docs/fod817as-datasheet.pdf)