BSR43TA

{
  "schema_version": 1,
  "type": "component",
  "slug": "bsr43ta",
  "title": "BSR43TA",
  "brief": "Diodes Incorporated Bipolar Transistors - BJT, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistors",
    "bsr43ta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BSR43TA",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://www.diodes.com/assets/Datasheets/BSR43TA.pdf",
    "parts": {
      "symbol": "bsr43ta.kicad_sym",
      "footprint": "bsr43ta.kicad_mod",
      "model_3d": "bsr43ta-hero.glb",
      "model_3d_plain": "bsr43ta-etched.glb",
      "model_3d_step": "bsr43ta-etched.step",
      "model_3d_step_plain": "bsr43ta.step",
      "lbr": "bsr43ta.lbr"
    },
    "distributor_links": {
      "lcsc": "C151616",
      "digikey": "BSR43TR-ND",
      "mouser": "522-BSR43TA"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T01:17:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "BSR43TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "522-BSR43TA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base; drive terminal of the NPN transistor, with VEBO limited to 5 V and peak base current IBM of 200 mA."
      },
      {
        "number": "2",
        "name": "C",
        "type": "passive",
        "description": "Collector (also the exposed collector tab); VCEO 80 V, VCBO 90 V, continuous IC 1 A and peak ICM 2 A."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the NPN transistor; VEBO maximum 5 V against the base."
      }
    ],
    "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 Top View Pin-Out drawing on page 1 shows three side pins labelled E (top), C (middle), B (bottom; The collector tab is the same net as the middle collector pin. It is not listed as a separate number",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0328,
        "at": "2026-11-05T01:17:10"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/BSR43TA.pdf",
        "pages": 7,
        "sha256": "b091fba2c049e541",
        "source_tier": "mfr"
      },
      "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": "bsr43ta.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bsr43ta-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "264528e19e0828fa846c247ce4f8e171914dd3fb45da4d77030e0d736830c084",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT89",
      "source_page": 6,
      "D": {
        "nom_mm": 4.5,
        "range_mm": [
          4.4,
          4.6
        ]
      },
      "E1": {
        "nom_mm": 2.445,
        "range_mm": [
          2.29,
          2.6
        ]
      },
      "E": {
        "nom_mm": 4.095,
        "range_mm": [
          3.94,
          4.25
        ]
      },
      "e": {
        "nom_mm": 1.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.5,
        "range_mm": [
          1.4,
          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bsr43ta.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-89",
      "Category": "Transistors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": " Terminals: Matte Tin Finish, Solderable per MIL-STD-202, Method 208",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "b091fba2c049e541245b742c0c215869eb6f0a5e2fb3d3745f1b5e94aceaef36"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bsr43ta"
  ],
  "discovery_pitch": "BSR43TA (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bsr43ta.kicad_sym",
    "bsr43ta.kicad_mod",
    "bsr43ta.glb",
    "bsr43ta.step",
    "bsr43ta.lbr",
    "docs/hero.png",
    "docs/bsr43ta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bsr43ta-hero.glb",
    "bsr43ta-hero.overlay.json",
    "bsr43ta-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}