CD431A

{
  "slug": "cd431a",
  "version": "0.1.0",
  "type": "component",
  "description": "DOWO Voltage References, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management",
    "cd431a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd431a.kicad_sym",
    "cd431a.kicad_mod",
    "cd431a.glb",
    "cd431a.step",
    "cd431a.lbr",
    "docs/hero.png",
    "docs/cd431a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd431a-hero.glb",
    "cd431a-hero.overlay.json",
    "cd431a-etched.glb"
  ],
  "component": {
    "mpn": "CD431A",
    "manufacturer": "DOWO",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management",
    "subcategory": "Voltage References",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9c4c48549f29353ebb28170050cf925f.pdf",
    "parts": {
      "symbol": "cd431a.kicad_sym",
      "footprint": "cd431a.kicad_mod",
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      "model_3d_plain": "cd431a-etched.glb",
      "model_3d_step": "cd431a-etched.step",
      "model_3d_step_plain": "cd431a.step",
      "lbr": "cd431a.lbr"
    },
    "distributor_links": {
      "lcsc": "C20416959"
    },
    "distributor_check": {
      "checked_at": "2026-11-04T18:02:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode (K)",
        "type": "passive",
        "description": "Cathode is rated up to 37 V (absolute maximum VKA) with a continuous cathode current range of 1 to 100 mA under recommended operating conditions."
      },
      {
        "number": "2",
        "name": "Reference (R)",
        "type": "input",
        "description": "Reference input sets the internal 2.495 V typical reference voltage (VREF), with reference input current IREF of 1.5 µA typical and 4 µA maximum."
      },
      {
        "number": "3",
        "name": "Anode (A)",
        "type": "passive",
        "description": "Anode is the return path for cathode current; the minimum cathode current for regulation IKA(MIN) is 1 mA maximum, with a 1.0 mA minimum sink current capability stated in the features."
      }
    ],
    "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 datasheet does not state ERC pin types; types for K, R and A are inferred from their shunt-refer"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0153,
        "at": "2026-11-04T18:01:52"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9c4c48549f29353ebb28170050cf925f.pdf",
        "pages": 4,
        "sha256": "b70c890b15a7ce63",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-11-04",
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      },
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  }
}