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Ray Set visibility: public f90a856 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "br431",
  "title": "BR431",
  "brief": "Foshan Blue Rocket Elec Bipolar (BJT), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "extractor-text"
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  "component": {
    "mpn": "BR431",
    "manufacturer": "Foshan Blue Rocket Elec",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603095161425571840",
    "parts": {
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      "footprint": "br431.kicad_mod",
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      "model_3d_plain": "br431-etched.glb",
      "model_3d_step": "br431-etched.step",
      "model_3d_step_plain": "br431.step",
      "lbr": "br431.lbr"
    },
    "distributor_links": {
      "lcsc": "C7429764"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:39:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode of the adjustable shunt regulator, rated for a cathode sink current of 1.0 mA to 100 mA and a continuous cathode current range of -100 to +100 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode of the adjustable shunt regulator, with a maximum cathode-to-anode voltage rating of 37 V."
      },
      {
        "number": "3",
        "name": "R",
        "type": "input",
        "description": "Reference input that sets the output voltage (VO = Vref to 37 V), with a reference voltage of 2.500 V typical and a continuous reference input current range of 0.05 to 10 mA."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "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 is taken from the text label 'PIN1:K PIN 2:A PIN 3:R' on page 1. The TO-92 package drawin"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0278,
        "at": "2026-10-18T15:36:57"
      },
      "datasheet": {
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        "pages": 7,
        "sha256": "8412ef2316cede3f",
        "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": [
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        "file": "br431.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "br431-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
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        "sha256": "008ddc2f1f22f00fece828ae66acf33866e0d5fdae342b61ee1ffb5ea19c50eb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Foshan Blue Rocket Elec",
      "Package": "TO-92",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8412ef2316cede3fca11a65088c3f7d8493b01107b1b6d726acfb67c1c699dfc",
      "rows": [
        {
          "name": "Reference input voltage (A grade, 0.4%)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 2.49,
          "typ": 2.5,
          "max": 2.51,
          "conditions": "VKA=VREF IK=10mA(A=0.4%)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reference input voltage (B grade, 0.8%)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 2.48,
          "typ": 2.5,
          "max": 2.52,
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          "source_page": 2,
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        },
        {
          "name": "Off-state cathode current",
          "symbol": "IK(off)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.05,
          "max": 1,
          "conditions": "VKA=36V VREF=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode current for regulation",
          "symbol": "IK(min)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.4,
          "max": 1,
          "conditions": "VKA=VREF",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dynamic impedance",
          "symbol": "|ZKA|",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.15,
          "max": 0.5,
          "conditions": "VKA=VREF f≤1.0KHz IK=1mA to 100mA",
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          "unit": "μA",
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          "typ": 1,
          "max": 4,
          "conditions": "IK=10mA R1=10KΩ R2=open",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Deviation of reference input current over full temperature range",
          "symbol": "ΔIREF/T",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.4,
          "max": 1.2,
          "conditions": "IK=10mA R1=10KΩ, R2=open TA=-40~125℃",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Deviation of reference input voltage over temperature",
          "symbol": "ΔVREF/T",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 4.5,
          "max": 17,
          "conditions": "VKA=VREF IK=10mA TA=-25~85℃",
          "source_page": 2,
          "source": "datasheet"
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        {
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          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -1,
          "max": -2.7,
          "conditions": "IK=10mA ΔVKA=10V to VREF",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ratio of change in reference input voltage to change in cathode voltage (36V to 10V)",
          "symbol": "ΔVREF/ΔVKA",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -0.45,
          "max": -2,
          "conditions": "IK=10mA ΔVKA=36V to 10V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Cathode to anode voltage",
          "symbol": "VKA",
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          "min": null,
          "typ": null,
          "max": 37,
          "conditions": "",
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        },
        {
          "name": "Cathode current range, continuous",
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          "min": -100,
          "typ": null,
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          "conditions": "Continuous",
          "source_page": 2,
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          "name": "Reference input current range, continuous",
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          "unit": "mA",
          "min": 0.05,
          "typ": null,
          "max": 10,
          "conditions": "Continuous",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 770,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Tamb",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "br431"
  ],
  "discovery_pitch": "BR431 (Foshan Blue Rocket Elec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "br431.lbr",
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    "viewers/symbol.html",
    "viewers/footprint.html",
    "br431-hero.glb",
    "br431-hero.overlay.json",
    "br431-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}