QCFJ-3439T-500UE

{
  "slug": "qcfj-3439t-500ue",
  "version": "0.1.0",
  "type": "component",
  "description": "Broadcom/AVAGO Transistor Output Optocoupler, SO-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "optocoupler",
    "qcfj-3439t-500ue",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "qcfj-3439t-500ue.kicad_sym",
    "qcfj-3439t-500ue.kicad_mod",
    "qcfj-3439t-500ue.glb",
    "qcfj-3439t-500ue.step",
    "qcfj-3439t-500ue.lbr",
    "docs/hero.png",
    "docs/qcfj-3439t-500ue-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "qcfj-3439t-500ue-hero.glb",
    "qcfj-3439t-500ue-hero.overlay.json",
    "qcfj-3439t-500ue-etched.glb"
  ],
  "component": {
    "mpn": "QCFJ-3439T-500UE",
    "manufacturer": "Broadcom/AVAGO",
    "package": "SO-24",
    "pin_count": 24,
    "category": "Optocoupler",
    "subcategory": "Transistor Output Optocoupler",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/24af23be2e3a04683701bc16f29c77a2.pdf",
    "parts": {
      "symbol": "qcfj-3439t-500ue.kicad_sym",
      "footprint": "qcfj-3439t-500ue.kicad_mod",
      "model_3d": "qcfj-3439t-500ue-hero.glb",
      "model_3d_plain": "qcfj-3439t-500ue-etched.glb",
      "model_3d_step": "qcfj-3439t-500ue-etched.step",
      "model_3d_step_plain": "qcfj-3439t-500ue.step",
      "lbr": "qcfj-3439t-500ue.lbr"
    },
    "distributor_links": {
      "lcsc": "C6800671"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T00:22:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VEE1",
        "type": "power_in",
        "description": "Input ground."
      },
      {
        "number": "2",
        "name": "/UVLO",
        "type": "output",
        "description": "VCC1 under voltage feedback and VCC2 under voltage lock-out feedback."
      },
      {
        "number": "3",
        "name": "/FAULT",
        "type": "output",
        "description": "Desaturation fault feedback."
      },
      {
        "number": "4",
        "name": "/GFAULT",
        "type": "output",
        "description": "IGBT/MOSFET gate status feedback."
      },
      {
        "number": "5",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally this pin is connected to the VEE1 lead frame."
      },
      {
        "number": "6",
        "name": "VCC1",
        "type": "power_in",
        "description": "Input positive power supply."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "8",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally connected to the input LED cathode lead frame."
      },
      {
        "number": "9",
        "name": "AN",
        "type": "input",
        "description": "Input LED anode."
      },
      {
        "number": "10",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally connected to the input LED anode lead frame."
      },
      {
        "number": "11",
        "name": "CA",
        "type": "input",
        "description": "Input LED cathode."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "13",
        "name": "VE",
        "type": "power_in",
        "description": "IGBT emitter/MOSFET source reference."
      },
      {
        "number": "14",
        "name": "VEE2",
        "type": "power_in",
        "description": "Output negative power supply."
      },
      {
        "number": "15",
        "name": "VEE2",
        "type": "power_in",
        "description": "Output negative power supply."
      },
      {
        "number": "16",
        "name": "VOUTN",
        "type": "output",
        "description": "Output driver to turn off the IGBT/MOSFET gate."
      },
      {
        "number": "17",
        "name": "VOUTP/CLAMP",
        "type": "output",
        "description": "Output driver to turn on the IGBT/MOSFET gate and Miller current clamping output."
      },
      {
        "number": "18",
        "name": "VCC2",
        "type": "power_in",
        "description": "Output positive power supply."
      },
      {
        "number": "19",
        "name": "SSD",
        "type": "output",
        "description": "Soft shutdown output driver."
      },
      {
        "number": "20",
        "name": "DESAT",
        "type": "input",
        "description": "Desaturation protection sensing input."
      },
      {
        "number": "21",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally connected to the LED2+ lead frame."
      },
      {
        "number": "22",
        "name": "LED2+(DNC)",
        "type": "unconnected",
        "description": "Do not connect, for testing only."
      },
      {
        "number": "23",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally connected to the VEE2 lead frame."
      },
      {
        "number": "24",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; internally connected to the VEE2 lead frame."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types are inferred from function descriptions; the datasheet does not state electrical direction; Pin 22 LED2+(DNC) is for testing only; typed unconnected. DNC pins 5, 23 and 24 are tied internally "
        ],
        "pages_sent": 6,
        "cost_usd": 0.0743,
        "at": "2026-10-24T00:21:52"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/24af23be2e3a04683701bc16f29c77a2.pdf",
        "pages": 27,
        "sha256": "cdb732fece3f4a6b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "qcfj-3439t-500ue.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.06,
          15.0,
          1.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b3c4c8baeedd5627b9927e4b5f3e924d518ae9eb337f1cf7f6809385c9fc2e85",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "qcfj-3439t-500ue-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.06,
          15.0,
          1.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1084b1de9c820e3663119cf81214811017fed830c184bbd5176cc8d7d94b72d3",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}