BR431-A

{
  "slug": "br431-a",
  "version": "0.1.0",
  "type": "component",
  "description": "Foshan Blue Rocket Elec Voltage References, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "br431-a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "br431-a.kicad_sym",
    "br431-a.kicad_mod",
    "br431-a.glb",
    "br431-a.step",
    "br431-a.lbr",
    "docs/hero.png",
    "docs/br431-a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "br431-a-hero.glb",
    "br431-a-hero.overlay.json",
    "br431-a-etched.glb"
  ],
  "component": {
    "mpn": "BR431-A",
    "manufacturer": "Foshan Blue Rocket Elec",
    "package": "TO-92-3",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Voltage References",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/571d7bde3ce407061d1482d5c58959db.pdf",
    "parts": {
      "symbol": "br431-a.kicad_sym",
      "footprint": "br431-a.kicad_mod",
      "model_3d": "br431-a-hero.glb",
      "model_3d_plain": "br431-a-etched.glb",
      "model_3d_step": "br431-a-etched.step",
      "model_3d_step_plain": "br431-a.step",
      "lbr": "br431-a.lbr"
    },
    "distributor_links": {
      "lcsc": "C305397"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T17:35:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode of the shunt regulator, rated for a cathode-to-anode voltage of 37 V and a continuous cathode current of -100 to +100 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode of the shunt regulator; the datasheet gives no separate electrical limit for this pin beyond the cathode-to-anode rating."
      },
      {
        "number": "3",
        "name": "R",
        "type": "input",
        "description": "Reference input of the adjustable regulator, which sets the 2.500 V reference (2.490 V to 2.510 V at 0.4% tolerance) and accepts a continuous reference input current of 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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pinout text (PIN1: K, PIN2: A, PIN3: R) appears only on page 1 beside a pinning diagram image. T; The datasheet does not state an electrical limit or function specific to the anode (pin 2). Its desc; Pin types are inferred: K and A set as passive and R as input, based on the shunt-regulator function"
        ],
        "pages_sent": 7,
        "cost_usd": 0.021,
        "at": "2026-10-30T17:35:27"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/571d7bde3ce407061d1482d5c58959db.pdf",
        "pages": 7,
        "sha256": "b44f5663c13491a1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "br431-a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "br431-a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
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        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f4643ed24aae34c2200ee5980e7425e10eec290abaf60b28434a33fed40f4fdd",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}