main
Ray Set visibility: public 5323639 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "1812l075pr",
  "title": "1812L075PR",
  "brief": "Littelfuse Resettable Fuses, 1812. 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",
    "1812l075pr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "1812L075PR",
    "manufacturer": "Littelfuse",
    "package": "1812",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899986939514880",
    "parts": {
      "symbol": "1812l075pr.kicad_sym",
      "footprint": "1812l075pr.kicad_mod",
      "model_3d": "1812l075pr-hero.glb",
      "model_3d_plain": "1812l075pr-etched.glb",
      "model_3d_step": "1812l075pr-etched.step",
      "model_3d_step_plain": "1812l075pr.step",
      "lbr": "1812l075pr.lbr"
    },
    "distributor_links": {
      "lcsc": "C142689"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:46:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Non-polarized solder-plated copper terminal of the 1812L075 PTC (0.75 A hold, 1.50 A trip, 13.2 Vdc max, 100 A max fault current); interchangeable with the other terminal."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Non-polarized solder-plated copper terminal of the 1812L075 PTC (0.75 A hold, 1.50 A trip, 13.2 Vdc max, 100 A max fault current); interchangeable with the other terminal."
      }
    ],
    "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 5 shows two unnumbered end terminals on a non-polarized resettable PTC, ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 7,
        "cost_usd": 0.2217,
        "at": "2026-10-18T20:43:22"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899986939514880",
        "pages": 7,
        "sha256": "6208de21968a51c9",
        "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": "1812l075pr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.52,
          3.22,
          0.9
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "189c0024e403b8508dbfa2b9adf89fd235dab8096537636a4743fe30e071a280",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "1812l075pr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.52,
          3.22,
          0.9
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9acec512652a6c776fe626a025d706a3668e9a702630d8d49dc90c1fe3b2d003",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "1812",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminal Material Solder-Plated Copper (Solder Material:",
        "page": 3,
        "doc": "ds.pdf",
        "material": "Copper"
      },
      "version": 1,
      "datasheet_sha256": "6208de21968a51c9eb4783c0fd44d08bd427d77e585e40bfa764dd3bcec59d92"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6208de21968a51c9eb4783c0fd44d08bd427d77e585e40bfa764dd3bcec59d92",
      "rows": [
        {
          "name": "Hold current (I hold)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.75,
          "max": null,
          "conditions": "20°C still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Trip current (I trip)",
          "symbol": "I trip",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "20°C still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage (V max)",
          "symbol": "Vmax",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": 13.2,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum fault current (I max)",
          "symbol": "Imax",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipated in tripped state (Pd)",
          "symbol": "Pd",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "tripped state at 20°C still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Max. time to trip",
          "symbol": "",
          "kind": "electrical",
          "unit": "s",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "at 8.00 A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Minimum resistance (R min)",
          "symbol": "R min",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0.1,
          "typ": null,
          "max": null,
          "conditions": "initial (un-soldered) state",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum resistance (R 1max)",
          "symbol": "R 1max",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "at 20°C, one hour after tripping or reflow soldering of 260°C for 20 sec",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating/storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Operating/Storage Temp.",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max. device surface temperature in tripped state",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "in tripped state",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Passive aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85°C, 1000 hours; typical resistance change",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Humidity aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85°C, 85% R.H., 1000 hours; typical resistance change",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": -30,
          "max": null,
          "conditions": "MIL-STD-202 Method 107, +85°C/-40°C 20 times; typical resistance change",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "1812l075pr"
  ],
  "discovery_pitch": "1812L075PR (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",
    "1812l075pr.kicad_sym",
    "1812l075pr.kicad_mod",
    "1812l075pr.glb",
    "1812l075pr.step",
    "1812l075pr.lbr",
    "docs/hero.png",
    "docs/1812l075pr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1812l075pr-hero.glb",
    "1812l075pr-hero.overlay.json",
    "1812l075pr-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}