SR05-4A 5.5A

{
  "slug": "sr05-4a-5-5a",
  "version": "0.1.0",
  "type": "component",
  "description": "DOWO ESD And Surge Protection (TVS/ESD), SOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "sr05-4a 5.5a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sr05-4a-5-5a.kicad_sym",
    "sr05-4a-5-5a.kicad_mod",
    "sr05-4a-5-5a.glb",
    "sr05-4a-5-5a.step",
    "sr05-4a-5-5a.lbr",
    "docs/hero.png",
    "docs/sr05-4a-5-5a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sr05-4a-5-5a-hero.glb",
    "sr05-4a-5-5a-hero.overlay.json",
    "sr05-4a-5-5a-etched.glb"
  ],
  "component": {
    "mpn": "SR05-4A 5.5A",
    "manufacturer": "DOWO",
    "package": "SOT-23-6L",
    "pin_count": 6,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954968913563648",
    "parts": {
      "symbol": "sr05-4a-5-5a.kicad_sym",
      "footprint": "sr05-4a-5-5a.kicad_mod",
      "model_3d": "sr05-4a-5-5a-hero.glb",
      "model_3d_plain": "sr05-4a-5-5a-etched.glb",
      "model_3d_step": "sr05-4a-5-5a-etched.step",
      "model_3d_step_plain": "sr05-4a-5-5a.step",
      "lbr": "sr05-4a-5-5a.lbr"
    },
    "distributor_links": {
      "lcsc": "C1884585"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T00:33:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IO1",
        "type": "bidirectional",
        "description": "Connect to the I/O line to be ESD/transient protected; the device has a 5 V peak reverse working voltage (VRWM) and is rated for ±20 kV IEC 61000-4-2 contact and air discharge."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Connect to ground; this is the common reference for the protection clamps on the I/O pins."
      },
      {
        "number": "3",
        "name": "IO2",
        "type": "bidirectional",
        "description": "Connect to the I/O line to be ESD/transient protected; the device has a 5 V peak reverse working voltage (VRWM) and is rated for ±20 kV IEC 61000-4-2 contact and air discharge."
      },
      {
        "number": "4",
        "name": "IO3",
        "type": "bidirectional",
        "description": "Connect to the I/O line to be ESD/transient protected; the device has a 5 V peak reverse working voltage (VRWM) and is rated for ±20 kV IEC 61000-4-2 contact and air discharge."
      },
      {
        "number": "5",
        "name": "Vcc",
        "type": "power_in",
        "description": "Connect to the Vcc supply rail of the protected circuit; the datasheet gives no separate voltage limit for this pin beyond the 5 V working voltage of the device."
      },
      {
        "number": "6",
        "name": "IO4",
        "type": "bidirectional",
        "description": "Connect to the I/O line to be ESD/transient protected; the device has a 5 V peak reverse working voltage (VRWM) and is rated for ±20 kV IEC 61000-4-2 contact and air discharge."
      }
    ],
    "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 table on page 2 lists pins 1-6 with names and functions, and the ordering table on page 1 co; Pin types are inferred: the datasheet only says 'Connect to I/O', 'Connect to GND' and 'Connect to V"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0253,
        "at": "2026-10-18T00:31:35"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954968913563648",
        "pages": 6,
        "sha256": "6e80774cf1a322ca",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "sr05-4a-5-5a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sr05-4a-5-5a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e92464ed7825bc315c2234db395ee6c58470d89a19166d8cd6c1dbffb89658ad",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}