SRDA3.3-4DR2G

{
  "schema_version": 1,
  "type": "component",
  "slug": "srda3-3-4dr2g",
  "title": "SRDA3.3-4DR2G",
  "brief": "TECH PUBLIC ESD And Surge Protection (TVS/ESD), 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",
    "circuit protection",
    "srda3.3-4dr2g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SRDA3.3-4DR2G",
    "manufacturer": "TECH PUBLIC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590919873558503424",
    "parts": {
      "symbol": "srda3-3-4dr2g.kicad_sym",
      "footprint": "srda3-3-4dr2g.kicad_mod",
      "model_3d": "srda3-3-4dr2g-hero.glb",
      "model_3d_plain": "srda3-3-4dr2g-etched.glb",
      "model_3d_step": "srda3-3-4dr2g-etched.step",
      "model_3d_step_plain": "srda3-3-4dr2g.step",
      "lbr": "srda3-3-4dr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C19829486",
      "digikey": "SRDA3.3-4DR2GOSTR-ND",
      "mouser": "863-SRDA3.3-4DR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:16:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SRDA3.3-4DR2GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-SRDA3.3-4DR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I/O 1",
        "type": "passive",
        "description": "Protected I/O line 1, with 7pF max (5pF typ) junction capacitance to ground and 3pF typ between I/O pins."
      },
      {
        "number": "2",
        "name": "REF 1",
        "type": "power_in",
        "description": "Positive reference (steering-diode top rail, tied to the TVS diode), internally common with pin 3."
      },
      {
        "number": "3",
        "name": "REF 1",
        "type": "power_in",
        "description": "Positive reference (steering-diode top rail, tied to the TVS diode), internally common with pin 2."
      },
      {
        "number": "4",
        "name": "I/O 2",
        "type": "passive",
        "description": "Protected I/O line 2, with 7pF max (5pF typ) junction capacitance to ground and 3pF typ between I/O pins."
      },
      {
        "number": "5",
        "name": "REF 2",
        "type": "power_in",
        "description": "Ground reference (bottom rail of the steering diodes), internally common with pin 8."
      },
      {
        "number": "6",
        "name": "I/O 3",
        "type": "passive",
        "description": "Protected I/O line 3, with 7pF max (5pF typ) junction capacitance to ground and 3pF typ between I/O pins."
      },
      {
        "number": "7",
        "name": "I/O 4",
        "type": "passive",
        "description": "Protected I/O line 4, with 7pF max (5pF typ) junction capacitance to ground and 3pF typ between I/O pins."
      },
      {
        "number": "8",
        "name": "REF 2",
        "type": "power_in",
        "description": "Ground reference (bottom rail of the steering diodes), internally common with pin 5."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives no pin-description table. The pin names come from the pin-configuration diagram ; I/O pins are typed passive because a TVS array has no signal direction. Confirm this fits your symbo",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.283,
        "at": "2026-10-19T07:11:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590919873558503424",
        "pages": 4,
        "sha256": "0d72d7db9c53591b",
        "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": "srda3-3-4dr2g.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "srda3-3-4dr2g-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": "37029522319eee299f54491fadacb5622b6f9602fa542e72c88e42733591bed3",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TECH PUBLIC",
      "Package": "SOP-8",
      "Category": "Circuit Protection",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "srda3.3-4dr2g"
  ],
  "discovery_pitch": "SRDA3.3-4DR2G (TECH PUBLIC) 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",
    "srda3-3-4dr2g.kicad_sym",
    "srda3-3-4dr2g.kicad_mod",
    "srda3-3-4dr2g.glb",
    "srda3-3-4dr2g.step",
    "srda3-3-4dr2g.lbr",
    "docs/hero.png",
    "docs/srda3-3-4dr2g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "srda3-3-4dr2g-hero.glb",
    "srda3-3-4dr2g-hero.overlay.json",
    "srda3-3-4dr2g-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}