BC857BV

{
  "slug": "bc857bv",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar (BJT), SOT-563. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "bc857bv",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bc857bv.kicad_sym",
    "bc857bv.kicad_mod",
    "bc857bv.glb",
    "bc857bv.step",
    "bc857bv.lbr",
    "docs/hero.png",
    "docs/bc857bv-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bc857bv-hero.glb",
    "bc857bv-hero.overlay.json",
    "bc857bv-etched.glb"
  ],
  "component": {
    "mpn": "BC857BV",
    "manufacturer": "Changjing",
    "package": "SOT-563",
    "pin_count": 6,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603047657871335424",
    "parts": {
      "symbol": "bc857bv.kicad_sym",
      "footprint": "bc857bv.kicad_mod",
      "model_3d": "bc857bv-hero.glb",
      "model_3d_plain": "bc857bv-etched.glb",
      "model_3d_step": "bc857bv-etched.step",
      "model_3d_step_plain": "bc857bv.step",
      "lbr": "bc857bv.lbr"
    },
    "distributor_links": {
      "lcsc": "C51315149"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:31:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "E1",
        "type": "passive",
        "description": "Emitter of transistor 1 (PNP); VEBO is -5 V maximum."
      },
      {
        "number": "2",
        "name": "B1",
        "type": "passive",
        "description": "Base of transistor 1 (PNP); VBE is -0.6 to -0.75 V at IC=-2 mA."
      },
      {
        "number": "3",
        "name": "C2",
        "type": "passive",
        "description": "Collector of transistor 2 (PNP); VCEO is -45 V, VCBO is -50 V, and continuous IC is -0.1 A maximum."
      },
      {
        "number": "4",
        "name": "E2",
        "type": "passive",
        "description": "Emitter of transistor 2 (PNP); VEBO is -5 V maximum."
      },
      {
        "number": "5",
        "name": "B2",
        "type": "passive",
        "description": "Base of transistor 2 (PNP); VBE is -0.6 to -0.75 V at IC=-2 mA."
      },
      {
        "number": "6",
        "name": "C1",
        "type": "passive",
        "description": "Collector of transistor 1 (PNP); VCEO is -45 V, VCBO is -50 V, and continuous IC is -0.1 A maximum."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "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: The datasheet has no pin table. The pin functions come from the small schematic symbol on page 1, wh",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.2099,
        "at": "2026-10-20T17:29:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603047657871335424",
        "pages": 4,
        "sha256": "80bc46dd0c9b62a9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bc857bv.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "76c34aa4905777c0a8abe4718019904a3a9f8343cab7cc056f4516b7ef5165fc",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bc857bv-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,
          0.63
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "27d5e2d6aefb8ebb9ce11210a33c7cc5a3b9e0038b41017fdca4e70c246c6e7e",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}