SI4435DY

{
  "schema_version": 1,
  "type": "component",
  "slug": "si4435dy",
  "title": "SI4435DY",
  "brief": "KEXIN MOSFETs, SOP-8. 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-thyristors",
    "si4435dy",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SI4435DY",
    "manufacturer": "KEXIN",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884291262550016",
    "parts": {
      "symbol": "si4435dy.kicad_sym",
      "footprint": "si4435dy.kicad_mod",
      "model_3d": "si4435dy-hero.glb",
      "model_3d_plain": "si4435dy.glb",
      "model_3d_step": "si4435dy-etched.step",
      "model_3d_step_plain": "si4435dy.step",
      "lbr": "si4435dy.lbr"
    },
    "distributor_links": {
      "lcsc": "C382326",
      "digikey": "4518-SI4435DYTR-ND",
      "mouser": "512-SI4435DY"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T17:11:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "4518-SI4435DYTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "512-SI4435DY",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "S",
        "type": "passive",
        "description": "Source terminal of the P-channel MOSFET, rated for VDS = -30 V with continuous drain current ID = -8.8 A at Ta = 25℃."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source terminal of the P-channel MOSFET, rated for VDS = -30 V with continuous drain current ID = -8.8 A at Ta = 25℃."
      },
      {
        "number": "3",
        "name": "S",
        "type": "passive",
        "description": "Source terminal of the P-channel MOSFET, rated for VDS = -30 V with continuous drain current ID = -8.8 A at Ta = 25℃."
      },
      {
        "number": "4",
        "name": "G",
        "type": "input",
        "description": "Gate terminal of the P-channel MOSFET, with gate-source voltage rated at ±20 V."
      },
      {
        "number": "5",
        "name": "D",
        "type": "passive",
        "description": "Drain terminal of the P-channel MOSFET, rated for VDS = -30 V with pulsed drain current IDM = -50 A."
      },
      {
        "number": "6",
        "name": "D",
        "type": "passive",
        "description": "Drain terminal of the P-channel MOSFET, rated for VDS = -30 V with pulsed drain current IDM = -50 A."
      },
      {
        "number": "7",
        "name": "D",
        "type": "passive",
        "description": "Drain terminal of the P-channel MOSFET, rated for VDS = -30 V with pulsed drain current IDM = -50 A."
      },
      {
        "number": "8",
        "name": "D",
        "type": "passive",
        "description": "Drain terminal of the P-channel MOSFET, rated for VDS = -30 V with pulsed drain current IDM = -50 A."
      }
    ],
    "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 SOP-8 pin-number-to-label mapping is garbled in the extracted text. The text shows three S label; The datasheet does not state a per-pin electrical function beyond the device-level ratings, so pin d; Headline specs (not part of this schema): VDS -30 V; ID -8.8 A continuous; IDM -50 A pulsed; VGS ±20"
        ],
        "pages_sent": 2,
        "cost_usd": 0.0256,
        "at": "2026-10-09T17:08:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884291262550016",
        "pages": 2,
        "sha256": "6c6ee965c49dcafb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "si4435dy.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "si4435dy-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "aff491517285d096f7b52c5c60be4a2bb71a83e33369fb10cc700c58f4fce040",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "KEXIN",
      "Package": "SOP-8",
      "Category": "Transistors/Thyristors",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "si4435dy"
  ],
  "discovery_pitch": "SI4435DY (KEXIN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "si4435dy.kicad_sym",
    "si4435dy.kicad_mod",
    "si4435dy.glb",
    "si4435dy.step",
    "si4435dy.lbr",
    "docs/hero.png",
    "docs/si4435dy-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "si4435dy-hero.glb",
    "si4435dy-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}