main
Ray Set visibility: public b742a37 5d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bc847a-rfg",
  "title": "BC847A RFG",
  "brief": "Taiwan Semiconductor(Taiwan Semicon) Bipolar Transistors - BJT, SOT-23. 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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  "component": {
    "mpn": "BC847A RFG",
    "manufacturer": "Taiwan Semiconductor(Taiwan Semicon)",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/57290698994adb0bcbabf14f882cd21f.pdf",
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      "model_3d_step_plain": "bc847a-rfg.step",
      "lbr": "bc847a-rfg.lbr"
    },
    "distributor_links": {
      "lcsc": "C486131",
      "digikey": "1801-BC847ARFGTR-ND",
      "mouser": "821-BC847ARFG"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:34:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1801-BC847ARFGTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "821-BC847ARFG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base terminal of the NPN transistor; for BC847 the emitter-base breakdown voltage is 6 V min and the emitter-base voltage rating is 6 V."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor, the reference for the VCEO of 45 V and VEBO of 6 V ratings of the BC847."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor; BC847 collector current is rated 0.1 A, VCEO 45 V, VCBO 50 V, and power dissipation 200 mW."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin assignments come from the package diagram on page 1 (1 Base, 2 Emitter, 3 Collector). Pin types ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.1856,
        "at": "2026-10-31T12:33:45"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/57290698994adb0bcbabf14f882cd21f.pdf",
        "pages": 4,
        "sha256": "5d0929d1f7b9c16c",
        "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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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "sha256": "82b4cd1a3cf7336e1c581471d82fdfb2c8816b7c9005db13a088b00c744084e9",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT-23",
      "source_page": 3,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
          2.7,
          3.1
        ]
      },
      "E1": {
        "nom_mm": 1.3,
        "range_mm": [
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          1.5
        ]
      },
      "E": {
        "nom_mm": 2.37,
        "range_mm": [
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          2.64
        ]
      },
      "e": {
        "nom_mm": 1.91,
        "range_mm": [
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          2.04
        ]
      },
      "A": {
        "nom_mm": 1.095,
        "range_mm": [
          0.89,
          1.3
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bc847a-rfg.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Taiwan Semiconductor(Taiwan Semicon)",
      "Package": "SOT-23",
      "Category": "Transistors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "- Matte Tin(Sn) lead finish with Nickel(Ni) under plate - Pb free and RoHS compliant",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "5d0929d1f7b9c16cd1d67ec429e699544cfc0c3cdb96d5773b662ddc45eb9e2c"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "5d0929d1f7b9c16cd1d67ec429e699544cfc0c3cdb96d5773b662ddc45eb9e2c",
      "rows": [
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          "name": "Collector-Base Voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "BC847",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "BC847",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
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          "typ": null,
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          "conditions": "BC847",
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        },
        {
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          "symbol": "IC",
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          "unit": "A",
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          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction and Storage Temperature Range",
          "symbol": "TJ, TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "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, BC847",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
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          "min": 45,
          "typ": null,
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          "conditions": "IC= 10mA IB= 0, BC847",
          "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= 1μA IC= 0, BC847",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Cut-off Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VCB= 30V IE= 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cut-off Current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VEB= 5 V IC=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain (BC847A)",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 110,
          "typ": null,
          "max": 220,
          "conditions": "VCE= 5V IC= 2mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "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": 1.1,
          "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= 5V IC= 10 mA f= 100MHz",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bc847a rfg"
  ],
  "discovery_pitch": "BC847A RFG (Taiwan Semiconductor(Taiwan Semicon)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}