1210L450SLWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "1210l450slwr",
  "title": "1210L450SLWR",
  "brief": "Littelfuse Resettable Fuses, 1210. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "circuit protection",
    "1210l450slwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "1210L450SLWR",
    "manufacturer": "Littelfuse",
    "package": "1210",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907056736972800",
    "parts": {
      "symbol": "1210l450slwr.kicad_sym",
      "footprint": "1210l450slwr.kicad_mod",
      "model_3d": "1210l450slwr-hero.glb",
      "model_3d_plain": "1210l450slwr-etched.glb",
      "model_3d_step": "1210l450slwr-etched.step",
      "model_3d_step_plain": "1210l450slwr.step",
      "lbr": "1210l450slwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C207051",
      "digikey": "F5790TR-ND",
      "mouser": "576-1210L450SLWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:31:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F5790TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-1210L450SLWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Terminal 1 of an unpolarised fuse; either orientation."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of an unpolarised fuse; either orientation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "primary_model": "two-terminal convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 2,
        "cost_usd": 0.0007,
        "at": "2026-10-18T05:27:55"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907056736972800",
        "pages": 2,
        "sha256": "1823d8c53345ec10",
        "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": "1210l450slwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          2.5,
          1.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a2f37cb6e4b6f7a8f2d2ebbbf7feddc654cfba27f38f8a8a35d303017fabf2ba",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "1210l450slwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          2.5,
          1.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d31a7adfd92f037a9c6a690dd90a4eae748b8cf833ccffab1f18e17695ea5c03",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "1210",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1823d8c53345ec10960166d75d4c014185ad080d1b96ed626480deec07070e2f",
      "rows": [
        {
          "name": "Minimum trip current",
          "symbol": "Itrip",
          "kind": "electrical",
          "unit": "A",
          "min": 9,
          "typ": null,
          "max": null,
          "conditions": "20℃ still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Minimum resistance, initial (un-soldered) state",
          "symbol": "Rmin",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0.001,
          "typ": null,
          "max": null,
          "conditions": "Un-soldered initial state",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum hold current",
          "symbol": "Ihold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "20℃ still air; maximum current device passes without tripping",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum resistance at 20℃ after trip or reflow",
          "symbol": "R1max",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.014,
          "conditions": "20℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage withstand without damage at rated current",
          "symbol": "Vmax",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "At rated current (Imax)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum fault current withstand without damage at rated voltage",
          "symbol": "Imax",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "At rated voltage (Vmax)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipated in tripped state",
          "symbol": "Pd max",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Tripped state, 20℃ still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum time-to-trip",
          "symbol": "",
          "kind": "timing",
          "unit": "s",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "At 22.50 A current",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "1210l450slwr"
  ],
  "discovery_pitch": "1210L450SLWR (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",
    "1210l450slwr.kicad_sym",
    "1210l450slwr.kicad_mod",
    "1210l450slwr.glb",
    "1210l450slwr.step",
    "1210l450slwr.lbr",
    "docs/hero.png",
    "docs/1210l450slwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1210l450slwr-hero.glb",
    "1210l450slwr-hero.overlay.json",
    "1210l450slwr-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}