MPSA44

{
  "slug": "mpsa44",
  "version": "0.1.0",
  "type": "component",
  "description": "ST Semtech Bipolar (BJT), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mpsa44",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mpsa44.kicad_sym",
    "mpsa44.kicad_mod",
    "mpsa44.glb",
    "mpsa44.step",
    "mpsa44.lbr",
    "docs/hero.png",
    "docs/mpsa44-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mpsa44-hero.glb",
    "mpsa44-hero.overlay.json",
    "mpsa44-etched.glb"
  ],
  "component": {
    "mpn": "MPSA44",
    "manufacturer": "ST Semtech",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588889819645169664",
    "parts": {
      "symbol": "mpsa44.kicad_sym",
      "footprint": "mpsa44.kicad_mod",
      "model_3d": "mpsa44-hero.glb",
      "model_3d_plain": "mpsa44-etched.glb",
      "model_3d_step": "mpsa44-etched.step",
      "model_3d_step_plain": "mpsa44.step",
      "lbr": "mpsa44.lbr"
    },
    "distributor_links": {
      "lcsc": "C157665"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T22:06:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the TO-92 package; the datasheet gives emitter-base voltage VEBO as 6 V maximum and emitter-base cutoff current IEBO as 0.1 µA maximum at VEB = 4 V."
      },
      {
        "number": "2",
        "name": "Base",
        "type": "passive",
        "description": "Base terminal of the TO-92 package; the datasheet gives base-emitter saturation voltage VBE(sat) as 0.75 V maximum at IC = 10 mA, IB = 1 mA."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector terminal of the TO-92 package; the datasheet rates collector-base voltage VCBO at 500 V, collector-emitter voltage VCEO at 400 V and collector current IC at 300 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 lists the TO-92 pinout as '1. Emitter 2. Base 3. Collector' and gives no pin diagram. ; Pin types were assigned as 'passive' because the datasheet does not state a pin type; KiCad symbols "
        ],
        "pages_sent": 2,
        "cost_usd": 0.0125,
        "at": "2026-10-17T22:04:20"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588889819645169664",
        "pages": 2,
        "sha256": "ed42b2899a543f7c",
        "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": "mpsa44.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mpsa44-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f88a4845f75de92c4dfd28af3605eedc1156513421bad7aac13931fed7050220",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}