TTA1943

{
  "slug": "tta1943",
  "version": "0.1.0",
  "type": "component",
  "description": "TOSHIBA Bipolar (BJT), TO-3P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "tta1943",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tta1943.kicad_sym",
    "tta1943.kicad_mod",
    "tta1943.glb",
    "tta1943.step",
    "tta1943.lbr",
    "docs/hero.png",
    "docs/tta1943-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tta1943-hero.glb",
    "tta1943-hero.overlay.json",
    "tta1943-etched.glb"
  ],
  "component": {
    "mpn": "TTA1943",
    "manufacturer": "TOSHIBA",
    "package": "TO-3P",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894878134231040",
    "parts": {
      "symbol": "tta1943.kicad_sym",
      "footprint": "tta1943.kicad_mod",
      "model_3d": "tta1943-hero.glb",
      "model_3d_plain": "tta1943-etched.glb",
      "model_3d_step": "tta1943-etched.step",
      "model_3d_step_plain": "tta1943.step",
      "lbr": "tta1943.lbr"
    },
    "distributor_links": {
      "lcsc": "C282420"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T11:30:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal; the datasheet rates base current IB at -1.5 A (absolute maximum)."
      },
      {
        "number": "2",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal, also the heat sink tab; the datasheet rates collector current IC at -15 A and collector power dissipation PC at 150 W (Tc=25°C)."
      },
      {
        "number": "3",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal; the datasheet rates emitter-base voltage VEBO at -5 V (absolute maximum)."
      }
    ],
    "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 gives the package only as 'TOSHIBA 2-21F1A' with JEDEC and JEITA marked '—'. It does n; The datasheet does not list ordering codes or package variants for TTA1943, so it cannot confirm tha; Pin types are assigned by KiCad convention for a bipolar transistor (base as input, collector and em"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0278,
        "at": "2026-11-06T11:30:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894878134231040",
        "pages": 5,
        "sha256": "b60b063e8766f2e8",
        "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": "tta1943.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          15.51,
          4.51,
          40.7
        ],
        "zmin_mm": -18.0,
        "centre_offset_mm": 0.855,
        "footprint_binding": "identity",
        "sha256": "6b9dd6fdfcfb00909b04d9f132623ccee7612f9b4de9ee0bea3ac067713b9b59",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tta1943-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": [
          15.51,
          4.51,
          40.7
        ],
        "zmin_mm": -18.0,
        "centre_offset_mm": 0.855,
        "footprint_binding": "identity",
        "sha256": "b659154c4b794703394a5620bdad5179d2885955d76e1fd80eef2d34f971fe1c",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}