TL431ACDG

{
  "slug": "tl431acdg",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Voltage Reference, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tl431acdg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tl431acdg.kicad_sym",
    "tl431acdg.kicad_mod",
    "tl431acdg.glb",
    "tl431acdg.step",
    "tl431acdg.lbr",
    "docs/hero.png",
    "docs/tl431acdg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tl431acdg-hero.glb",
    "tl431acdg-hero.overlay.json",
    "tl431acdg-etched.glb"
  ],
  "component": {
    "mpn": "TL431ACDG",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884152578293760",
    "parts": {
      "symbol": "tl431acdg.kicad_sym",
      "footprint": "tl431acdg.kicad_mod",
      "model_3d": "tl431acdg-hero.glb",
      "model_3d_plain": "tl431acdg-etched.glb",
      "model_3d_step": "tl431acdg-etched.step",
      "model_3d_step_plain": "tl431acdg.step",
      "lbr": "tl431acdg.lbr"
    },
    "distributor_links": {
      "lcsc": "C233727",
      "digikey": "TL431ACDGOS-ND",
      "mouser": "863-TL431ACDG"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:35:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TL431ACDGOS-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-TL431ACDG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode of the shunt regulator, operating at 1.0 mA to 100 mA sink current with VKA from Vref up to 36 V."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "power_in",
        "description": "Anode (ground side) of the shunt regulator, electrically common to the die attach flag with pins 3, 6 and 7."
      },
      {
        "number": "3",
        "name": "Anode",
        "type": "power_in",
        "description": "Anode (ground side) of the shunt regulator, electrically common to the die attach flag with pins 2, 6 and 7."
      },
      {
        "number": "4",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "6",
        "name": "Anode",
        "type": "power_in",
        "description": "Anode (ground side) of the shunt regulator, electrically common to the die attach flag with pins 2, 3 and 7."
      },
      {
        "number": "7",
        "name": "Anode",
        "type": "power_in",
        "description": "Anode (ground side) of the shunt regulator, electrically common to the die attach flag with pins 2, 3 and 6."
      },
      {
        "number": "8",
        "name": "Reference",
        "type": "input",
        "description": "Reference input of the programmable shunt regulator, set by two external resistors to program the output from Vref to 36 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOIC-8 pinout figure text is garbled in extraction and does not map each label to a pin number e; Pin types are assigned using KiCad ERC classes by function (reference as input, anode and cathode as"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0961,
        "at": "2026-10-20T17:34:03"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884152578293760",
        "pages": 22,
        "sha256": "c82bb95655b732ca",
        "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"
    },
    "models_3d": [
      {
        "file": "tl431acdg.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tl431acdg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "96d6d1cdca36d8bbf049028f2f96df3898e11f4931e3744bc0dd1f39f914ca25",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}