A940

{
  "slug": "a940",
  "version": "0.1.0",
  "type": "component",
  "description": "OSEN Bipolar (BJT), TO-220AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "a940",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a940.kicad_sym",
    "a940.kicad_mod",
    "a940.glb",
    "a940.step",
    "a940.lbr",
    "docs/hero.png",
    "docs/a940-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a940-hero.glb",
    "a940-hero.overlay.json",
    "a940-etched.glb"
  ],
  "component": {
    "mpn": "A940",
    "manufacturer": "OSEN",
    "package": "TO-220AB",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920708195233792",
    "parts": {
      "symbol": "a940.kicad_sym",
      "footprint": "a940.kicad_mod",
      "model_3d": "a940-hero.glb",
      "model_3d_plain": "a940-etched.glb",
      "model_3d_step": "a940-etched.step",
      "model_3d_step_plain": "a940.step",
      "lbr": "a940.lbr"
    },
    "distributor_links": {
      "lcsc": "C20607874"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T01:57:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base; emitter-base voltage is limited to 7 V (VEBO) and the base-drive test condition is IB=0.5A."
      },
      {
        "number": "2",
        "name": "C",
        "type": "passive",
        "description": "Collector (also the tab connection); VCBO 170 V, VCEO 150 V, continuous collector current 1.5 A, collector dissipation 25 W at Tc=25°C."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter; the current return terminal of the transistor, with VEBO limited to 7 V."
      }
    ],
    "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": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pinout (1=B, 2=C, 3=E) comes from the page 1 symbol. That symbol is drawn as an NPN, with the em; The datasheet's own numbers disagree in places. VCE(sat) is tested at IC=5A, but the continuous IC r",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1534,
        "at": "2026-10-15T01:56:57"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920708195233792",
        "pages": 3,
        "sha256": "d2f2c3591aa110ff",
        "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": "a940.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a940-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": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "99d9712690f479141253b3f5da0f03d29e9e510f9f5a7420912ab7e0103b8143",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}