LYA2.8-4

{
  "slug": "lya2-8-4",
  "version": "0.1.0",
  "type": "component",
  "description": "Liown ESD And Surge Protection (TVS/ESD), SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "lya2.8-4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lya2-8-4.kicad_sym",
    "lya2-8-4.kicad_mod",
    "lya2-8-4.glb",
    "lya2-8-4.step",
    "lya2-8-4.lbr",
    "docs/hero.png",
    "docs/lya2-8-4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lya2-8-4-hero.glb",
    "lya2-8-4-hero.overlay.json",
    "lya2-8-4-etched.glb"
  ],
  "component": {
    "mpn": "LYA2.8-4",
    "manufacturer": "Liown",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902673166454784",
    "parts": {
      "symbol": "lya2-8-4.kicad_sym",
      "footprint": "lya2-8-4.kicad_mod",
      "model_3d": "lya2-8-4-hero.glb",
      "model_3d_plain": "lya2-8-4-etched.glb",
      "model_3d_step": "lya2-8-4-etched.step",
      "model_3d_step_plain": "lya2-8-4.step",
      "lbr": "lya2-8-4.lbr"
    },
    "distributor_links": {
      "lcsc": "C2925462"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T04:44:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Terminal of the lower-left TVS diode element in the circuit schematic, paired with pin 2; protects one of the four I/O lines (VRWM 2.8V max, IEC 61000-4-2 ±30kV air/contact)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal of the lower-left TVS diode element in the circuit schematic, paired with pin 1; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Terminal of the lower-right TVS diode element in the circuit schematic, paired with pin 4; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "4",
        "name": "4",
        "type": "passive",
        "description": "Terminal of the lower-right TVS diode element in the circuit schematic, paired with pin 3; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "5",
        "name": "5",
        "type": "passive",
        "description": "Terminal of the upper-right TVS diode element in the circuit schematic, paired with pin 6; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "6",
        "name": "6",
        "type": "passive",
        "description": "Terminal of the upper-right TVS diode element in the circuit schematic, paired with pin 5; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "7",
        "name": "7",
        "type": "passive",
        "description": "Terminal of the upper-left TVS diode element in the circuit schematic, paired with pin 8; protects one of the four I/O lines (VRWM 2.8V max)."
      },
      {
        "number": "8",
        "name": "8",
        "type": "passive",
        "description": "Terminal of the upper-left TVS diode element in the circuit schematic, paired with pin 7; protects one of the four I/O lines (VRWM 2.8V max)."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives only an unlabeled circuit schematic with no pin names or table. Pins are shown a",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.215,
        "at": "2026-10-19T04:42:30"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902673166454784",
        "pages": 5,
        "sha256": "c3c7d19b6f53517a",
        "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": "lya2-8-4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lya2-8-4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d173dae42674aed0874302cd5d9e1737e32a9aca44ab88fdd9f8c03aed042dfe",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}