MJD2955

{
  "slug": "mjd2955",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar (BJT), TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mjd2955",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mjd2955.kicad_sym",
    "mjd2955.kicad_mod",
    "mjd2955.glb",
    "mjd2955.step",
    "mjd2955.lbr",
    "docs/hero.png",
    "docs/mjd2955-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mjd2955-hero.glb",
    "mjd2955-hero.overlay.json",
    "mjd2955-etched.glb"
  ],
  "component": {
    "mpn": "MJD2955",
    "manufacturer": "Changjing",
    "package": "TO-252-2L",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835930900201472",
    "parts": {
      "symbol": "mjd2955.kicad_sym",
      "footprint": "mjd2955.kicad_mod",
      "model_3d": "mjd2955-hero.glb",
      "model_3d_plain": "mjd2955-etched.glb",
      "model_3d_step": "mjd2955-etched.step",
      "model_3d_step_plain": "mjd2955.step",
      "lbr": "mjd2955.lbr"
    },
    "distributor_links": {
      "lcsc": "C2992046",
      "mouser": "863-MJD2955"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T02:16:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "863-MJD2955",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the PNP transistor; the datasheet's saturation tests drive it at IB = -0.4 A for IC = -4 A and IB = -3.3 A for IC = -10 A."
      },
      {
        "number": "2",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal rated for -10 A continuous collector current, -60 V collector-emitter voltage (VCEO) and -70 V collector-base voltage (VCBO), with 1.25 W collector power dissipation."
      },
      {
        "number": "3",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal; the emitter-base voltage is rated at -5 V (VEBO) and the junction and storage temperature range is -55 to +150 °C."
      }
    ],
    "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 package is named TO-252-2L, but the datasheet pinout lists three pins (1 BASE, 2 COLLECTOR, 3 EM; The datasheet gives pin names only and does not state which pin the tab/heatsink connects to. Pin 2 ; Pin types are KiCad ERC classes chosen from the pin names: BASE is 'input', and COLLECTOR and EMITTE"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0263,
        "at": "2026-10-19T02:13:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835930900201472",
        "pages": 5,
        "sha256": "64058eb6a990a241",
        "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": "mjd2955.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mjd2955-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1fe29676245f0f75073177dea159d40979e3ea1e8f891f79eeb7d70e17894cb5",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}