BCX53-JSM

{
  "slug": "bcx53-jsm",
  "version": "0.1.0",
  "type": "component",
  "description": "JSMSEMI Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "bcx53-jsm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bcx53-jsm.kicad_sym",
    "bcx53-jsm.kicad_mod",
    "bcx53-jsm.glb",
    "bcx53-jsm.step",
    "bcx53-jsm.lbr",
    "docs/hero.png",
    "docs/bcx53-jsm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bcx53-jsm-hero.glb",
    "bcx53-jsm-hero.overlay.json",
    "bcx53-jsm-etched.glb"
  ],
  "component": {
    "mpn": "BCX53-JSM",
    "manufacturer": "JSMSEMI",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f4926d2bf83287946f938afb97036605.pdf",
    "parts": {
      "symbol": "bcx53-jsm.kicad_sym",
      "footprint": "bcx53-jsm.kicad_mod",
      "model_3d": "bcx53-jsm-hero.glb",
      "model_3d_plain": "bcx53-jsm-etched.glb",
      "model_3d_step": "bcx53-jsm-etched.step",
      "model_3d_step_plain": "bcx53-jsm.step",
      "lbr": "bcx53-jsm.lbr"
    },
    "distributor_links": {
      "lcsc": "C30587309"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:59:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base of the PNP transistor; VEBO max is -5 V and peak base current IBM is -0.2 A."
      },
      {
        "number": "2",
        "name": "C",
        "type": "passive",
        "description": "Collector of the PNP transistor; VCBO -100 V, VCEO -80 V, continuous IC -1 A and peak ICM -1.5 A."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the PNP transistor; VEBO max is -5 V relative to base."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pinning list gives pin 2 as Collector. The SOT-89 drawing on p-4 shows a tab but doesn; Pin types for a discrete BJT have no exact KiCad class. B is set to input and C and E to passive, wh",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.1939,
        "at": "2026-10-22T21:58:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f4926d2bf83287946f938afb97036605.pdf",
        "pages": 4,
        "sha256": "516be2bfd2f2b94b",
        "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": "bcx53-jsm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.5,
          1.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bcx53-jsm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.5,
          1.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "ed057a430ff5cc5103ee0b1611fccbfe8fdfeacfc658193aa84be02a70bf7fe9",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}