AD-BC848

{
  "slug": "ad-bc848",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "triode-mos tube-transistor",
    "ad-bc848",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ad-bc848.kicad_sym",
    "ad-bc848.kicad_mod",
    "ad-bc848.glb",
    "ad-bc848.step",
    "ad-bc848.lbr",
    "docs/hero.png",
    "docs/ad-bc848-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ad-bc848-hero.glb",
    "ad-bc848-hero.overlay.json",
    "ad-bc848-etched.glb"
  ],
  "component": {
    "mpn": "AD-BC848",
    "manufacturer": "Changjing",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Triode/MOS Tube/Transistor",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/abc058ae6145f1c1e14f55cef3c7c427.pdf",
    "parts": {
      "symbol": "ad-bc848.kicad_sym",
      "footprint": "ad-bc848.kicad_mod",
      "model_3d": "ad-bc848-hero.glb",
      "model_3d_plain": "ad-bc848-etched.glb",
      "model_3d_step": "ad-bc848-etched.step",
      "model_3d_step_plain": "ad-bc848.step",
      "lbr": "ad-bc848.lbr"
    },
    "distributor_links": {
      "lcsc": "C2975620"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:51:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the NPN transistor; emitter-base voltage VEBO max 6 V and emitter cut-off current IEBO max 0.1 µA at VEB = 5 V."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor, the common return for the 100 mA continuous collector current (IC max 0.1 A)."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor; AD-BC848 has VCEO 30 V and VCBO 30 V max, IC max 0.1 A, and PC 200 mW."
      }
    ],
    "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 SOT-23 pin assignment (1 Base, 2 Emitter, 3 Collector) comes from the page 1 package drawing. Pi",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.1696,
        "at": "2026-10-22T21:51:18"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/abc058ae6145f1c1e14f55cef3c7c427.pdf",
        "pages": 6,
        "sha256": "8c8ea58b9f8dc1c0",
        "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": "ad-bc848.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ad-bc848-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7891e44dfbdb5e86e78a1a5cbde988d642c11aaaf73f3602693a487f6c6e53df",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}