SR05.TCT

{
  "slug": "sr05-tct",
  "version": "0.1.0",
  "type": "component",
  "description": "SEMTECH ESD And Surge Protection (TVS/ESD), SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "sr05.tct",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sr05-tct.kicad_sym",
    "sr05-tct.kicad_mod",
    "sr05-tct.glb",
    "sr05-tct.step",
    "sr05-tct.lbr",
    "docs/hero.png",
    "docs/sr05-tct-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sr05-tct-hero.glb",
    "sr05-tct-hero.overlay.json"
  ],
  "component": {
    "mpn": "SR05.TCT",
    "manufacturer": "SEMTECH",
    "package": "SOT-143",
    "pin_count": 4,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199232784551936",
    "parts": {
      "symbol": "sr05-tct.kicad_sym",
      "footprint": "sr05-tct.kicad_mod",
      "model_3d": "sr05-tct-hero.glb",
      "model_3d_plain": "sr05-tct.glb",
      "model_3d_step": "sr05-tct-etched.step",
      "model_3d_step_plain": "sr05-tct.step",
      "lbr": "sr05-tct.lbr"
    },
    "distributor_links": {
      "lcsc": "C115809",
      "digikey": "SR05TR-ND",
      "mouser": "947-SR05.TCT"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T04:25:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SR05TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "947-SR05.TCT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REF1",
        "type": "power_in",
        "description": "Negative reference (ground) pin that should be connected directly to a ground plane with the shortest possible path to minimize parasitic inductance."
      },
      {
        "number": "2",
        "name": "I/O (data line)",
        "type": "passive",
        "description": "Protected data line input that is clamped to REF1 or REF2 by the steering diodes when the voltage exceeds the reference plus one diode drop."
      },
      {
        "number": "3",
        "name": "I/O (data line)",
        "type": "passive",
        "description": "Protected data line input that is clamped to REF1 or REF2 by the steering diodes when the voltage exceeds the reference plus one diode drop."
      },
      {
        "number": "4",
        "name": "REF2",
        "type": "passive",
        "description": "Positive reference that can be tied directly to VCC, tied through a series resistor (10kΩ recommended) for supply isolation, or left unconnected so the internal TVS sets the reference (5.0V working voltage)."
      }
    ],
    "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 datasheet has no formal pin-description table (the 'PIN Descriptions' heading on page 5 is empty; Pin 4 (REF2) is optional: the datasheet allows it to be tied to VCC, tied through a series resistor,; Pins 2 and 3 are typed passive because the datasheet describes them only as protected data line conn"
        ],
        "pages_sent": 9,
        "cost_usd": 0.042,
        "at": "2026-10-09T04:24:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199232784551936",
        "pages": 9,
        "sha256": "3a4fe668c1557bdd",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sr05-tct.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.3,
          2.9,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b35b433c0dc71ac416a9c731e744d2e0610f82ebe97275830f0e17cdcbe44512",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sr05-tct-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.3,
          2.9,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "88e1e18dbfb992bfbea625b4b8dd238c97fe29762a2456116598cf688cdefb8c",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}