2SC4618

{
  "slug": "2sc4618",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar (BJT), SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "2sc4618",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "2sc4618.kicad_sym",
    "2sc4618.kicad_mod",
    "2sc4618.glb",
    "2sc4618.step",
    "2sc4618.lbr",
    "docs/hero.png",
    "docs/2sc4618-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "2sc4618-hero.glb",
    "2sc4618-hero.overlay.json",
    "2sc4618-etched.glb"
  ],
  "component": {
    "mpn": "2SC4618",
    "manufacturer": "Changjing",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590917921122304000",
    "parts": {
      "symbol": "2sc4618.kicad_sym",
      "footprint": "2sc4618.kicad_mod",
      "model_3d": "2sc4618-hero.glb",
      "model_3d_plain": "2sc4618-etched.glb",
      "model_3d_step": "2sc4618-etched.step",
      "model_3d_step_plain": "2sc4618.step",
      "lbr": "2sc4618.lbr"
    },
    "distributor_links": {
      "lcsc": "C19269056"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:07:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "passive",
        "description": "Base terminal of the NPN transistor, with emitter-base breakdown V(BR)EBO of 5 V minimum at IE=50µA and absolute maximum emitter-base voltage VEBO of 5 V."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor, with absolute maximum emitter-base voltage VEBO of 5 V and maximum collector current IC of 50 mA."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the NPN transistor, with absolute maximum collector-base voltage VCBO of 40 V, collector-emitter voltage VCEO of 25 V, and collector current IC of 50 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 gives the SOT-523 pin assignment only as a numbered text list (1. BASE, 2. EMITTER, 3.; The datasheet covers only one package (SOT-523) and does not state a separate sold-as variant or ord"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0235,
        "at": "2026-10-18T23:04:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590917921122304000",
        "pages": 4,
        "sha256": "b47049dc47205db9",
        "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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        "file": "2sc4618.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.6,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "39e78d838b525e7c202adf8d102008e3ebe02f918278104e84d567aff437d95e",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "2sc4618-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c82eed5e907abef4db30d22ffecea5fd0b2857eead1151d907ae634599b9a9ec",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}