BC850C

{
  "schema_version": 1,
  "type": "component",
  "slug": "bc850c",
  "title": "BC850C",
  "brief": "Nexperia Bipolar (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": [
    "component",
    "transistors-thyristors",
    "bc850c",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BC850C",
    "manufacturer": "Nexperia",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917880725782528",
    "parts": {
      "symbol": "bc850c.kicad_sym",
      "footprint": "bc850c.kicad_mod",
      "model_3d": "bc850c-hero.glb",
      "model_3d_plain": "bc850c.glb",
      "model_3d_step": "bc850c-etched.step",
      "model_3d_step_plain": "bc850c.step",
      "lbr": "bc850c.lbr"
    },
    "distributor_links": {
      "lcsc": "C80071",
      "mouser": "637-BC850C"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T05:36:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "637-BC850C",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "base",
        "type": "input",
        "description": "Base terminal of the NPN transistor; the datasheet gives the device limits of VEBO −5 V and IBM peak base current −200 mA for the part."
      },
      {
        "number": "2",
        "name": "emitter",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor; the device limits are IC collector current (DC) −100 mA and ICM peak collector current −200 mA, with VEBO −5 V."
      },
      {
        "number": "3",
        "name": "collector",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor; for the BC850 the datasheet gives VCBO −50 V and VCEO −45 V, with IC collector current (DC) −100 mA."
      }
    ],
    "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 covers the BC849/BC850 family (NXP, 2004; Nexperia name appears only in the cover noti; The Fig.1 outline text is garbled in the extracted text; pin numbers were taken from the PIN DESCRIP"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0339,
        "at": "2026-10-09T05:34:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917880725782528",
        "pages": 9,
        "sha256": "5a54f49bd041f6c5",
        "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": "bc850c.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bc850c-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4f79bfc3b1bb4b9fa706fcb5d7a716b220d9a914ac820c27396f8c0e64dfa6b9",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bc850c"
  ],
  "discovery_pitch": "BC850C (Nexperia) 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",
    "bc850c.kicad_sym",
    "bc850c.kicad_mod",
    "bc850c.glb",
    "bc850c.step",
    "bc850c.lbr",
    "docs/hero.png",
    "docs/bc850c-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bc850c-hero.glb",
    "bc850c-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}