CJ2045

{
  "slug": "cj2045",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar Transistors - BJT, SOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "triode-mos tube-transistor",
    "cj2045",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cj2045.kicad_sym",
    "cj2045.kicad_mod",
    "cj2045.glb",
    "cj2045.step",
    "cj2045.lbr",
    "docs/hero.png",
    "docs/cj2045-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cj2045-hero.glb",
    "cj2045-hero.overlay.json",
    "cj2045-etched.glb"
  ],
  "component": {
    "mpn": "CJ2045",
    "manufacturer": "Changjing",
    "package": "SOT-23-6L",
    "pin_count": 6,
    "category": "Triode/MOS Tube/Transistor",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2807bb8c5d9b112576a840dd06cd8751.pdf",
    "parts": {
      "symbol": "cj2045.kicad_sym",
      "footprint": "cj2045.kicad_mod",
      "model_3d": "cj2045-hero.glb",
      "model_3d_plain": "cj2045-etched.glb",
      "model_3d_step": "cj2045-etched.step",
      "model_3d_step_plain": "cj2045.step",
      "lbr": "cj2045.lbr"
    },
    "distributor_links": {
      "lcsc": "C3031910"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T09:25:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1",
        "type": "passive",
        "description": "Tr1 NPN collector, rated 40V VCBO, 30V VCEO and 1.5A continuous (5A peak)."
      },
      {
        "number": "2",
        "name": "B1",
        "type": "passive",
        "description": "Tr1 NPN base, with emitter-base voltage limited to 7V."
      },
      {
        "number": "3",
        "name": "C2",
        "type": "passive",
        "description": "Tr2 PNP collector, rated -40V VCBO, -30V VCEO and -1.5A continuous (-5A peak)."
      },
      {
        "number": "4",
        "name": "E2",
        "type": "passive",
        "description": "Tr2 PNP emitter, with emitter-base voltage limited to -7V."
      },
      {
        "number": "5",
        "name": "B2",
        "type": "passive",
        "description": "Tr2 PNP base, with emitter-base voltage limited to -7V."
      },
      {
        "number": "6",
        "name": "E1",
        "type": "passive",
        "description": "Tr1 NPN emitter, with emitter-base voltage limited to 7V."
      }
    ],
    "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: No pin-name table is given. Pin functions were read from the equivalent-circuit drawing on page 1, w",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.1986,
        "at": "2026-10-21T09:16:16"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2807bb8c5d9b112576a840dd06cd8751.pdf",
        "pages": 6,
        "sha256": "942cf8152e0fbb84",
        "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": "cj2045.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj2045-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2fcedbf40a0546f19e943453b089397d38a2dfdb626c5684cf3f185c60616c48",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}