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Ray Set visibility: public 1c58517 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "bc547cbk",
  "title": "BC547CBK",
  "brief": "DIOTEC 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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    "transistors-thyristors",
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  "component": {
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    "manufacturer": "DIOTEC",
    "package": "TO-92",
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    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454666191265792",
    "parts": {
      "symbol": "bc547cbk.kicad_sym",
      "footprint": "bc547cbk.kicad_mod",
      "model_3d": "bc547cbk-hero.glb",
      "model_3d_plain": "bc547cbk-etched.glb",
      "model_3d_step": "bc547cbk-etched.step",
      "model_3d_step_plain": "bc547cbk.step",
      "lbr": "bc547cbk.lbr"
    },
    "distributor_links": {
      "lcsc": "C3201550"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:56:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C",
        "type": "passive",
        "description": "Collector of the NPN transistor; for the BC547 group, VCEO is 45 V, VCBO 50 V, dc collector current 100 mA with 200 mA peak, and Ptot 500 mW (valid with leads at ambient temperature 2 mm from the case)."
      },
      {
        "number": "2",
        "name": "B",
        "type": "passive",
        "description": "Base of the NPN transistor; peak base current is limited to 200 mA and the emitter-base voltage VEB0 is 5 V."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the NPN transistor; peak emitter current is limited to 200 mA and the emitter-base voltage VEB0 is 5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "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 datasheet's TO-92 drawing labels the leads only as 'C B E' (left to right, 2 x 1.27 mm pitch) an; The datasheet covers the BC546xBK to BC549xBK family in special bulk packaging. Pinout is shown for "
        ],
        "pages_sent": 3,
        "cost_usd": 0.0419,
        "at": "2026-10-18T12:54:50"
      },
      "datasheet": {
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        "pages": 3,
        "sha256": "889a83aa8ac5ef11",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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        "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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        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
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  "metadata": {
    "specs": {
      "Manufacturer": "DIOTEC",
      "Package": "TO-92",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "affect human life or health, user shall contact in advance Diotec Semiconductor AG's Managing Board (Heitersheim, Germany) to",
        "page": 3,
        "doc": "ds.pdf",
        "plating": "silver"
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      "version": 1,
      "datasheet_sha256": "889a83aa8ac5ef11d1309f834e5c7bda7e3905a5807814fdff82e5f5b0dcb036"
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      "source": "datasheet",
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          "typ": null,
          "max": 50,
          "conditions": "BC547 column",
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          "source": "datasheet"
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          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "BC547 column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base voltage (E open)",
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          "kind": "absolute_maximum",
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          "max": 50,
          "conditions": "BC547 column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base voltage (C open)",
          "symbol": "VEB0",
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          "typ": null,
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          "conditions": "all types",
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        {
          "name": "Collector current (dc)",
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          "typ": null,
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          "conditions": "",
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        {
          "name": "Peak collector current",
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        {
          "name": "Peak base current",
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        {
          "name": "Peak emitter current",
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          "conditions": "",
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        {
          "name": "Power dissipation",
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          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "leads kept at ambient temperature at a distance of 2 mm from case (footnote 1)",
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        {
          "name": "Junction temperature",
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          "unit": "°C",
          "min": -55,
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          "conditions": "",
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        {
          "name": "Storage temperature",
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          "min": -55,
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          "conditions": "",
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        },
        {
          "name": "Thermal resistance junction to ambient air",
          "symbol": "RthA",
          "kind": "thermal",
          "unit": "K/W",
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          "conditions": "leads at ambient temperature at 2 mm from case (footnote 1)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter cutoff current",
          "symbol": "ICES",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 0.2,
          "max": 15,
          "conditions": "VCE = 50 V, (B-E short)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter cutoff current at Tj = 125°C",
          "symbol": "ICES",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VCE = 50 V, Tj = 125°C, (B-E short)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter saturation voltage",
          "symbol": "VCEsat",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "IC = 10 mA, IB = 0.5 mA",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Collector-Emitter saturation voltage",
          "symbol": "VCEsat",
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          "max": 600,
          "conditions": "IC = 100 mA, IB = 5 mA",
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          "source": "datasheet"
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        {
          "name": "Base saturation voltage",
          "symbol": "VBEsat",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "IC = 10 mA, IB = 0.5 mA",
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          "source": "datasheet"
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        {
          "name": "Base saturation voltage",
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          "conditions": "IC = 100 mA, IB = 5 mA",
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          "source": "datasheet"
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        {
          "name": "Base-Emitter voltage",
          "symbol": "VBE",
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          "min": 580,
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          "conditions": "VCE = 5 V, IC = 2 mA",
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        {
          "name": "Base-Emitter voltage",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 700,
          "max": 720,
          "conditions": "VCE = 5 V, IC = 10 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (Group C)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 420,
          "typ": null,
          "max": 800,
          "conditions": "VCE = 5 V, IC = 2 mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (Group C)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 270,
          "max": null,
          "conditions": "VCE = 5 V, IC = 10 µA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain (Group C)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "VCE = 5 V, IC = 100 mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Small signal current gain (Group C)",
          "symbol": "hfe",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "VCE = 5 V, IC = 2 mA, f = 1 kHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input impedance (Group C)",
          "symbol": "hie",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 6,
          "typ": null,
          "max": 15,
          "conditions": "VCE = 5 V, IC = 2 mA, f = 1 kHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output admittance (Group C)",
          "symbol": "hoe",
          "kind": "electrical",
          "unit": "µS",
          "min": null,
          "typ": 60,
          "max": 110,
          "conditions": "VCE = 5 V, IC = 2 mA, f = 1 kHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Gain-bandwidth product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "VCE = 5 V, IC = 10 mA, f = 100 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base capacitance",
          "symbol": "CCBO",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 3.5,
          "max": 6,
          "conditions": "VCB = 10 V, IE = ie = 0, f = 1 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base capacitance",
          "symbol": "CEB0",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "VEB = 0.5 V, IC = ic = 0, f = 1 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Noise figure (BC546/BC547)",
          "symbol": "F",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "VCE = 5 V, IC = 200 µA, RG = 2 kΩ, f = 1 kHz, Δf = 200 Hz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "BC547CBK (DIOTEC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}