A44-TA

{
  "slug": "a44-ta",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar (BJT), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "a44-ta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a44-ta.kicad_sym",
    "a44-ta.kicad_mod",
    "a44-ta.glb",
    "a44-ta.step",
    "a44-ta.lbr",
    "docs/hero.png",
    "docs/a44-ta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a44-ta-hero.glb",
    "a44-ta-hero.overlay.json",
    "a44-ta-etched.glb"
  ],
  "component": {
    "mpn": "A44-TA",
    "manufacturer": "Changjing",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931056147046400",
    "parts": {
      "symbol": "a44-ta.kicad_sym",
      "footprint": "a44-ta.kicad_mod",
      "model_3d": "a44-ta-hero.glb",
      "model_3d_plain": "a44-ta-etched.glb",
      "model_3d_step": "a44-ta-etched.step",
      "model_3d_step_plain": "a44-ta.step",
      "lbr": "a44-ta.lbr"
    },
    "distributor_links": {
      "lcsc": "C19269169"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:50:48Z",
      "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 A44 NPN transistor; emitter-base voltage is rated at 5 V maximum (VEBO) and collector current at 0.2 A continuous (0.3 A pulsed)."
      },
      {
        "number": "2",
        "name": "BASE",
        "type": "passive",
        "description": "Base terminal of the A44 NPN transistor; base drive for the device is specified in the datasheet at IB = 1 mA for IC = 10 mA saturation tests and 5 mA for IC = 50 mA."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the A44 NPN transistor; collector-base and collector-emitter voltages are rated at 400 V (VCBO and VCEO), with collector power dissipation of 625 mW."
      }
    ],
    "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 pinout is taken from the printed text list '1.EMITTER 2.BASE 3.COLLECTOR' on the datasheet page ; The MPN suffix '-TA' does not appear in the ordering table, which only lists the A44 device code wit; The datasheet's hFE rank (Z) and molding (G/C prefix) variants are not resolved for this MPN. The pi"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0255,
        "at": "2026-10-18T20:48:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931056147046400",
        "pages": 5,
        "sha256": "2be5c17175ecdd2e",
        "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": "a44-ta.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a44-ta-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": "263f9a8cf2b943a0ac782aafc33a0be7cb7046dd6558e0a809c829578282a492",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}