BAS40-04T

{
  "slug": "bas40-04t",
  "version": "0.1.0",
  "type": "component",
  "description": "CBI Schottky Diodes, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "bas40-04t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bas40-04t.kicad_sym",
    "bas40-04t.kicad_mod",
    "bas40-04t.glb",
    "bas40-04t.step",
    "bas40-04t.lbr",
    "docs/hero.png",
    "docs/bas40-04t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bas40-04t-hero.glb",
    "bas40-04t-hero.overlay.json",
    "bas40-04t-etched.glb"
  ],
  "component": {
    "mpn": "BAS40-04T",
    "manufacturer": "CBI",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Diodes",
    "subcategory": "Schottky Diodes",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921392600653824",
    "parts": {
      "symbol": "bas40-04t.kicad_sym",
      "footprint": "bas40-04t.kicad_mod",
      "model_3d": "bas40-04t-hero.glb",
      "model_3d_plain": "bas40-04t-etched.glb",
      "model_3d_step": "bas40-04t-etched.step",
      "model_3d_step_plain": "bas40-04t.step",
      "lbr": "bas40-04t.lbr"
    },
    "distributor_links": {
      "lcsc": "C21714097"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:14:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "passive",
        "description": "The datasheet labels pin 1 as BASE for the SOT-523 package, but it states no electrical function or limit for this pin; the label is a transistor term that does not match this diode part."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "The datasheet labels pin 2 as EMITTER for the SOT-523 package, but it states no electrical function or limit for this pin; the label is a transistor term that does not match this diode part."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "The datasheet labels pin 3 as COLLECTOR for the SOT-523 package, but it states no electrical function or limit for this pin; the label is a transistor term that does not match this diode part."
      }
    ],
    "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 pin labels BASE, EMITTER and COLLECTOR are transistor terms and do not fit a Schottky diode part; The package outline page is titled SOD-523 and describes 2 leads, while the SOT-523 marking block sh; The pin types are assigned as passive because the datasheet states no pin function. These are not co"
        ],
        "pages_sent": 2,
        "cost_usd": 0.0648,
        "at": "2026-10-18T23:12:19"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921392600653824",
        "pages": 2,
        "sha256": "e81a94a21c0adbbe",
        "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": "bas40-04t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a9bcf1c2c4aa0b5a5b444741df957c3246d21c21e6d2236a0f81867441edb553",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bas40-04t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9866b6637eaf5a9d75b93fa4b01e673c240f9d3ffe95b5744bcd8be395fc2aac",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}