0440007.WRA

{
  "schema_version": 1,
  "type": "component",
  "slug": "0440007-wra",
  "title": "0440007.WRA",
  "brief": "Littelfuse Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "circuit protection",
    "0440007.wra",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "0440007.WRA",
    "manufacturer": "Littelfuse",
    "package": "1206",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Disposable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922075888668672",
    "parts": {
      "symbol": "0440007-wra.kicad_sym",
      "footprint": "0440007-wra.kicad_mod",
      "model_3d": "0440007-wra-hero.glb",
      "model_3d_plain": "0440007-wra-etched.glb",
      "model_3d_step": "0440007-wra-etched.step",
      "model_3d_step_plain": "0440007-wra.step",
      "lbr": "0440007-wra.lbr"
    },
    "distributor_links": {
      "lcsc": "C1972821"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:14:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One fuse termination (Ag/Ni/Sn) of the non-polarized 7 A element, rated 63 V, 0.00753 ohm nominal resistance, interrupting rating 50A @ 32VAC/63VDC."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second fuse termination (Ag/Ni/Sn), interchangeable with the other end; the element is non-polarized and mounts with the marking code facing up."
      }
    ],
    "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 shows a two-terminal 1206 chip fuse with two end terminations on the dimension drawing",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1153,
        "at": "2026-10-18T13:12:37"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922075888668672",
        "pages": 3,
        "sha256": "2658fd8ae24a011b",
        "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": "0440007-wra.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          1.6,
          0.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5e6dcbe286696143d35a8ea37d91eef4b54ff3d1bd7c2c2b4dedda83d3f8e203",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "0440007-wra-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          1.6,
          0.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e9298de42c4d42bff68ad6d8693ecb4e856ca8d7373f7675b607a34ad451f764",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "1206",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass",
        "page": 3,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "2658fd8ae24a011ba9b42a62bf09bd08cbb599883172c59fb47be4b9bb9dff35"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2658fd8ae24a011ba9b42a62bf09bd08cbb599883172c59fb47be4b9bb9dff35",
      "rows": [
        {
          "name": "Opening time at 100% of ampere rating",
          "symbol": "",
          "kind": "timing",
          "unit": "hours",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "100% of ampere rating, 25ºC, minimum",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Opening time at 350% of ampere rating",
          "symbol": "",
          "kind": "timing",
          "unit": "secs.",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "350% of ampere rating, 25ºC, maximum",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "ºC",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous operation current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "Continuous operation; percent of rated current",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak temperature (TP), Pb-free reflow",
          "symbol": "TP",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Pb-free reflow; do not exceed 260°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Wave soldering time",
          "symbol": "",
          "kind": "timing",
          "unit": "seconds",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Wave soldering at 260°C, maximum",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max. voltage rating",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 63,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Ampere rating",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 7,
          "max": null,
          "conditions": "Amp code 007.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ohms",
          "min": null,
          "typ": 0.00753,
          "max": null,
          "conditions": "Measured with < 10% rated current",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal melting I2t",
          "symbol": "I2t",
          "kind": "electrical",
          "unit": "A²Sec.",
          "min": null,
          "typ": 8.464,
          "max": null,
          "conditions": "Measured at 1 msec opening time",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal voltage drop at rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.0696,
          "max": null,
          "conditions": "At rated current, after temperature has stabilized",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal power dissipation at rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 0.487,
          "max": null,
          "conditions": "At rated current",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "0440007.wra"
  ],
  "discovery_pitch": "0440007.WRA (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "0440007-wra.kicad_sym",
    "0440007-wra.kicad_mod",
    "0440007-wra.glb",
    "0440007-wra.step",
    "0440007-wra.lbr",
    "docs/hero.png",
    "docs/0440007-wra-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "0440007-wra-hero.glb",
    "0440007-wra-hero.overlay.json",
    "0440007-wra-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}