S9018

{
  "schema_version": 1,
  "type": "component",
  "slug": "s9018",
  "title": "S9018",
  "brief": "hongjiacheng 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",
    "s9018",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "S9018",
    "manufacturer": "hongjiacheng",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8564879655565496320",
    "parts": {
      "symbol": "s9018.kicad_sym",
      "footprint": "s9018.kicad_mod",
      "model_3d": "s9018-hero.glb",
      "model_3d_plain": "s9018.glb",
      "model_3d_step": "s9018-etched.step",
      "model_3d_step_plain": "s9018.step",
      "lbr": "s9018.lbr"
    },
    "distributor_links": {
      "lcsc": "C41375130"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T03:16:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "passive",
        "description": "Base terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin B. Base-emitter saturation voltage is specified at IC=10mA, IB=1mA, with a maximum of 1.4 V."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin E. Emitter-base breakdown voltage is 5.0 V minimum at IE=100μA."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin C. Collector-base breakdown voltage is 30 V minimum and collector current is rated at 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 no explicit pin-by-pin table for SOT-23. The mapping (1=B, 2=E, 3=C) comes from ; The datasheet does not state a separate function for each pin beyond the transistor terminal labels."
        ],
        "pages_sent": 3,
        "cost_usd": 0.0287,
        "at": "2026-10-09T03:15:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8564879655565496320",
        "pages": 3,
        "sha256": "87f4583e6652db41",
        "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": "s9018.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": "s9018-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": "3930ce0e43917cf983e4715b96c41f3aea605bf4a8a9ca560d43e37d9ca5e322",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "hongjiacheng",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "s9018"
  ],
  "discovery_pitch": "S9018 (hongjiacheng) 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",
    "s9018.kicad_sym",
    "s9018.kicad_mod",
    "s9018.glb",
    "s9018.step",
    "s9018.lbr",
    "docs/hero.png",
    "docs/s9018-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "s9018-hero.glb",
    "s9018-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}