SMF90A

{
  "slug": "smf90a",
  "version": "0.1.0",
  "type": "component",
  "description": "DOWO ESD And Surge Protection (TVS/ESD), SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "smf90a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "smf90a.kicad_sym",
    "smf90a.kicad_mod",
    "smf90a.glb",
    "smf90a.step",
    "smf90a.lbr",
    "docs/hero.png",
    "docs/smf90a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "smf90a-hero.glb",
    "smf90a-hero.overlay.json"
  ],
  "component": {
    "mpn": "SMF90A",
    "manufacturer": "DOWO",
    "package": "SOD-123",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586186236713177088",
    "parts": {
      "symbol": "smf90a.kicad_sym",
      "footprint": "smf90a.kicad_mod",
      "model_3d": "smf90a-hero.glb",
      "model_3d_plain": "smf90a.glb",
      "model_3d_step": "smf90a-etched.step",
      "model_3d_step_plain": "smf90a.step",
      "lbr": "smf90a.lbr"
    },
    "distributor_links": {
      "lcsc": "C50325405",
      "digikey": "F5755TR-ND",
      "mouser": "576-SMF90A"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T17:23:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F5755TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-SMF90A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, the end marked by the color band; connect to the protected line, which must stay below the 90 V working peak reverse voltage (VRWM) for unidirectional SMF90A (breakdown 100-111 V at 1 mA)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the end opposite the color band; connect to ground/return, with peak pulse current up to 1.37 A at 146 V maximum clamping voltage."
      }
    ],
    "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 drawing shows no pin numbers. It only says the color band marks the cathode end (unidi",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1219,
        "at": "2026-10-09T17:21:34"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586186236713177088",
        "pages": 3,
        "sha256": "fe54c475efed0169",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "smf90a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.5,
          1.6,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "132323445e3d1f9231e81c083cd88a33cd204dd8b96063bb2ed1f3ab4470c7e7",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "smf90a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.5,
          1.6,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4622d07e0943311561bc3e33aaa81624397ae16186de4765ab6193e3455fb01b",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}