BC848BWT106

{
  "slug": "bc848bwt106",
  "version": "0.1.0",
  "type": "component",
  "description": "ROHM Semicon Bipolar Transistors - BJT, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "triode-mos tube-transistor",
    "bc848bwt106",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bc848bwt106.kicad_sym",
    "bc848bwt106.kicad_mod",
    "bc848bwt106.glb",
    "bc848bwt106.step",
    "bc848bwt106.lbr",
    "docs/hero.png",
    "docs/bc848bwt106-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bc848bwt106-hero.glb",
    "bc848bwt106-hero.overlay.json"
  ],
  "component": {
    "mpn": "BC848BWT106",
    "manufacturer": "ROHM Semicon",
    "package": "SOT-323",
    "pin_count": 3,
    "category": "Triode/MOS Tube/Transistor",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8ebfbfcf2cc0febcd6b086c0cfc57e40.pdf",
    "parts": {
      "symbol": "bc848bwt106.kicad_sym",
      "footprint": "bc848bwt106.kicad_mod",
      "model_3d": "bc848bwt106-hero.glb",
      "model_3d_plain": "bc848bwt106.glb",
      "model_3d_step": "bc848bwt106-etched.step",
      "model_3d_step_plain": "bc848bwt106.step",
      "lbr": "bc848bwt106.lbr"
    },
    "distributor_links": {
      "lcsc": "C600677",
      "digikey": "BC848BWT106TR-ND",
      "mouser": "755-BC848BWT106"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T11:13:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "BC848BWT106TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "755-BC848BWT106",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor; the emitter-base breakdown voltage BVEBO is 5 V minimum and the emitter-base voltage VEBO is rated at 5 V."
      },
      {
        "number": "2",
        "name": "Base",
        "type": "input",
        "description": "Base terminal of the NPN transistor, driven to set the collector current, with a base-emitter saturation voltage VBE(sat) of 0.77 V maximum at IC/IB = 10 mA/0.5 mA."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor, rated for a collector-emitter voltage VCEO of 30 V, collector-base voltage VCBO of 30 V and collector current IC of 0.1 A."
      }
    ],
    "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 pin numbers 1, 2, 3 and their names come from the external dimensions figure of the BC848BW (ROH; The datasheet covers BC848BW (UMT3 / SOT-323) and BC848B (SST3 / SOT-23) in one document. The MPN BC; Pin types were assigned using KiCad conventions for a bipolar transistor (base = input, emitter and "
        ],
        "pages_sent": 6,
        "cost_usd": 0.01,
        "at": "2026-11-13T11:13:39"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/8ebfbfcf2cc0febcd6b086c0cfc57e40.pdf",
        "pages": 6,
        "sha256": "ba1f2af69d13ada7",
        "source_tier": "mfr"
      },
      "cad": "land: KiCad official (CC-BY-SA 4.0); 3D: generated from the datasheet",
      "model_3d_generated": {
        "generator": "factory/gen_pkg3d.py",
        "family": "SOT-563",
        "height_mm": 0.9,
        "height_basis": "datasheet A, nominal",
        "standoff_mm": 0.05,
        "standoff_basis": "family nominal (no datasheet A1 read)",
        "lead_width_mm": 0.27,
        "lead_width_basis": "default: 0.6 x pad width across the lead, at most 0.45 x pitch 1.30 mm; a tab 0.9 x its width (no datasheet b read)",
        "lead_thickness_mm": 0.1,
        "lead_thickness_basis": "default for pitch 1.30 mm, height 0.9 mm (no datasheet c read)"
      },
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bc848bwt106.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2.0,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "620892c7e2b2ac3712b92679ae1344298e106d3a4d36938e8643f112264482cd",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bc848bwt106-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2.0,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "99cdf62f259850f0e596dab8ea3557c761a86016b80cbb516ce84f467cfb8210",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "UMT3",
      "source_page": 1,
      "D": {
        "nom_mm": 2.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 1.25,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 2.1,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.9,
        "range_mm": [
          null,
          null
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bc848bwt106.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}