component
TL1431ACDT
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STMicroelectronics Voltage Reference, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# TL1431ACDT++**STMicroelectronics** · Voltage Reference · SO-8++TL1431ACDT from STMicroelectronics, in a SO-8. 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 | Cathode | passive | Cathode of the shunt regulator; cathode-to-anode voltage VKA ranges from Vref to 36 V (37 V absolute max) with cathode current of 1 to 100 mA. |+| 2 | Anode | passive | Anode of the shunt regulator, the lowest-potential (ground) terminal; shorted internally to pins 3, 6 and 7 in the pin diagram. |+| 3 | Anode (unlabeled) | passive | Unlabeled in Figure 2 but drawn with a dot tying it to the internal anode net. |+| 4 | NC | unconnected | No connection. |+| 5 | NC | unconnected | No connection. |+| 6 | Anode (unlabeled) | passive | Unlabeled in Figure 2 but drawn with a dot tying it to the internal anode net. |+| 7 | Anode | passive | Anode of the shunt regulator, the lowest-potential (ground) terminal. |+| 8 | Ref | input | Reference input that sets the output voltage via an external divider; Vref is 2.500 V typical (2.493 to 2.507 V for the TL1431AC) and the input current range is -0.05 to +10 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SO-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `TL1431ACDT`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8 (KiCad packages3D, STEP)+- 3D model files: `tl1431acdt-etched.step` / `tl1431acdt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl1431acdt.step` / `tl1431acdt.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199655797022720) (27 pp, sha256 `b6e98452fdf42eee`, retrieved 2026-10-05, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/tl1431acdt-datasheet.pdf)
page.jsonadded+160@@ -0,0 +1,160 @@+{+ "slug": "tl1431acdt",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Reference, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tl1431acdt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tl1431acdt.kicad_sym",+ "tl1431acdt.kicad_mod",+ "tl1431acdt.glb",+ "tl1431acdt.step",+ "tl1431acdt.lbr",+ "docs/hero.png",+ "docs/tl1431acdt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tl1431acdt-hero.glb",+ "tl1431acdt-hero.overlay.json"+ ],+ "component": {+ "mpn": "TL1431ACDT",+ "manufacturer": "STMicroelectronics",+ "package": "SO-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199655797022720",+ "parts": {+ "symbol": "tl1431acdt.kicad_sym",+ "footprint": "tl1431acdt.kicad_mod",+ "model_3d": "tl1431acdt-hero.glb",+ "model_3d_plain": "tl1431acdt.glb",+ "model_3d_step": "tl1431acdt-etched.step",+ "model_3d_step_plain": "tl1431acdt.step",+ "lbr": "tl1431acdt.lbr"+ },+ "distributor_links": {+ "lcsc": 283415,+ "digikey": "497-2222-2-ND",+ "mouser": "511-TL1431ACDT"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T22:21:51Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-2222-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-TL1431ACDT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "Cathode",+ "type": "passive",+ "description": "Cathode of the shunt regulator; cathode-to-anode voltage VKA ranges from Vref to 36 V (37 V absolute max) with cathode current of 1 to 100 mA."+ },+ {+ "number": "2",+ "name": "Anode",+ "type": "passive",+ "description": "Anode of the shunt regulator, the lowest-potential (ground) terminal; shorted internally to pins 3, 6 and 7 in the pin diagram."+ },+ {+ "number": "3",+ "name": "Anode (unlabeled)",+ "type": "passive",+ "description": "Unlabeled in Figure 2 but drawn with a dot tying it to the internal anode net."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "6",+ "name": "Anode (unlabeled)",+ "type": "passive",+ "description": "Unlabeled in Figure 2 but drawn with a dot tying it to the internal anode net."+ },+ {+ "number": "7",+ "name": "Anode",+ "type": "passive",+ "description": "Anode of the shunt regulator, the lowest-potential (ground) terminal."+ },+ {+ "number": "8",+ "name": "Ref",+ "type": "input",+ "description": "Reference input that sets the output voltage via an external divider; Vref is 2.500 V typical (2.493 to 2.507 V for the TL1431AC) and the input current range is -0.05 to +10 mA."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: SO-8 pin assignments inferred from functional description and Figure 2 (Page 3) schematic diagram, w"+ ],+ "pages_sent": 27,+ "cost_usd": 0.1948,+ "at": "2026-10-05T22:21:38"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199655797022720",+ "pages": 27,+ "sha256": "b6e98452fdf42eee",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}