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Ray Set visibility: public 433559f 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bc847t",
  "title": "BC847T",
  "brief": "Changjing Bipolar (BJT), SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistors-thyristors",
    "bc847t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BC847T",
    "manufacturer": "Changjing",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590229261962678272",
    "parts": {
      "symbol": "bc847t.kicad_sym",
      "footprint": "bc847t.kicad_mod",
      "model_3d": "bc847t-hero.glb",
      "model_3d_plain": "bc847t-etched.glb",
      "model_3d_step": "bc847t-etched.step",
      "model_3d_step_plain": "bc847t.step",
      "lbr": "bc847t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2910266"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:46:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the NPN transistor; the datasheet gives no pin-specific electrical limits, so the absolute maximum ratings apply (VEBO 6 V, IC 0.1 A continuous, PC 150 mW)."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor; the datasheet gives no pin-specific electrical limits, so the absolute maximum ratings apply (VEBO 6 V, IC 0.1 A continuous, PC 150 mW)."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor; the datasheet gives no pin-specific electrical limits, so the absolute maximum ratings apply (VCBO 50 V, VCEO 45 V, IC 0.1 A continuous, PC 150 mW)."
      }
    ],
    "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 lists only the pin names (1. BASE, 2. EMITTER, 3. COLLECTOR) for the SOT-523 package a; Pin types were assigned from KiCad ERC classes based on the transistor terminal function (base as in; The datasheet covers the BC847AT, BC847BT and BC847CT marking variants (1E, 1F, 1G) in SOT-523. The "
        ],
        "pages_sent": 4,
        "cost_usd": 0.026,
        "at": "2026-10-18T23:43:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590229261962678272",
        "pages": 4,
        "sha256": "bc8db9d101bf6c1c",
        "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": "bc847t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a1b0b03421daf49d716eadedaadf103f8bd1a2193e112a1ac8af14656854c187",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bc847t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.6,
          0.8
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f022dfa0c8f7a252effbcae4c585bfe13e387f334d664cb6e1f98345b10feaaf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SOT-523",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bc8db9d101bf6c1c72e6ce7ddbc808af2f5edf20a76f3b35d4d86232a4862754",
      "rows": [
        {
          "name": "Collector-base voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector current, continuous",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector power dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operation junction and storage temperature range",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "IC= 10µA, IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": 45,
          "typ": null,
          "max": null,
          "conditions": "IC= 10mA, IB=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": 6,
          "typ": null,
          "max": null,
          "conditions": "IE= 1 µA, IC=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector cutoff current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "VCB=30V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (BC847AT grade)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 110,
          "typ": null,
          "max": 220,
          "conditions": "VCE= 5V, IC= 2mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (BC847BT grade)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 200,
          "typ": null,
          "max": 450,
          "conditions": "VCE= 5V, IC= 2mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (BC847CT grade)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 420,
          "typ": null,
          "max": 800,
          "conditions": "VCE= 5V, IC= 2mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter voltage",
          "symbol": "VBE(on)",
          "kind": "electrical",
          "unit": "V",
          "min": 580,
          "typ": 660,
          "max": 700,
          "conditions": "VCE= 5V, IC= 2mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter voltage",
          "symbol": "VBE(on)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 770,
          "conditions": "VCE= 5V, IC= 10mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "IC=10mA, IB=0.5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IC=100mA, IB=5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "IC=10mA, IB=0.5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "IC=100mA, IB=5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VCE= 5 V, IC= 10mA, f=100MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "VCB=10V,f=1MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Noise figure (BC847BT)",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VCE=5V,f=1kHz, RS=2kΩ,BW=200Hz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Noise figure (BC847CT)",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VCE=5V,f=1kHz, RS=2kΩ,BW=200Hz",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bc847t"
  ],
  "discovery_pitch": "BC847T (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bc847t.kicad_sym",
    "bc847t.kicad_mod",
    "bc847t.glb",
    "bc847t.step",
    "bc847t.lbr",
    "docs/hero.png",
    "docs/bc847t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bc847t-hero.glb",
    "bc847t-hero.overlay.json",
    "bc847t-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}