0494001.NR

{
  "slug": "0494001-nr",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse Disposable Fuses, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "0494001.nr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "0494001-nr.kicad_sym",
    "0494001-nr.kicad_mod",
    "0494001-nr.glb",
    "0494001-nr.step",
    "0494001-nr.lbr",
    "docs/hero.png",
    "docs/0494001-nr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "0494001-nr-hero.glb",
    "0494001-nr-hero.overlay.json",
    "0494001-nr-etched.glb"
  ],
  "component": {
    "mpn": "0494001.NR",
    "manufacturer": "Littelfuse",
    "package": "0603",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Disposable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899987619532800",
    "parts": {
      "symbol": "0494001-nr.kicad_sym",
      "footprint": "0494001-nr.kicad_mod",
      "model_3d": "0494001-nr-hero.glb",
      "model_3d_plain": "0494001-nr-etched.glb",
      "model_3d_step": "0494001-nr-etched.step",
      "model_3d_step_plain": "0494001-nr.step",
      "lbr": "0494001-nr.lbr"
    },
    "distributor_links": {
      "lcsc": "C142652"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T00:07:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error",
        "error": "The read operation timed out"
      },
      "mouser": {
        "pn": null,
        "status": "error",
        "error": "The read operation timed out"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One of two interchangeable Sn-plated end terminations of the 1A (Amp Code 001.) thin-film fuse, rated 32V max with 50A @32V AC/DC interrupting rating and nominal cold resistance 0.0710 ohms."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second interchangeable Sn-plated end termination of the 1A (Amp Code 001.) fuse, in series with pin 1 through the fuse element, rated 32V max with 0.0710 ohms nominal cold resistance."
      }
    ],
    "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 package drawing on page 3 shows two unnumbered end terminations, and the datasheet gives no pin ; The MPN 0494001.NR decodes as Amp Code 001. (1.00 A) with NR packaging (tape and reel, 5000 pcs). Th",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1063,
        "at": "2026-10-18T00:06:12"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899987619532800",
        "pages": 3,
        "sha256": "cd83e7cef8cdaba4",
        "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": "0494001-nr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.8,
          0.45
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2178c56deff687266eecad5e197b7ab2d230afae45def1320cff0ea839f46b49",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "0494001-nr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.8,
          0.45
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3bec03ccbd77b2d34e02907d0a99254e3c973cbf871a8a53f43c0fd4b2a68cee",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}