main
Ray Set visibility: public 7b316b4 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "1206l150slyr",
  "title": "1206L150SLYR",
  "brief": "Littelfuse Resettable 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",
    "1206l150slyr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
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    "manufacturer": "Littelfuse",
    "package": "1206",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588910128951136257",
    "parts": {
      "symbol": "1206l150slyr.kicad_sym",
      "footprint": "1206l150slyr.kicad_mod",
      "model_3d": "1206l150slyr-hero.glb",
      "model_3d_plain": "1206l150slyr-etched.glb",
      "model_3d_step": "1206l150slyr-etched.step",
      "model_3d_step_plain": "1206l150slyr.step",
      "lbr": "1206l150slyr.lbr"
    },
    "distributor_links": {
      "lcsc": "C207037"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:40:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Unpolarized PPTC terminal (solder-plated copper end terminal) with Ihold 1.50 A, Itrip 3.90 A, Vmax 6 Vdc and Imax 50 A for the device."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Unpolarized PPTC terminal (solder-plated copper end terminal), interchangeable with the other terminal, with R1max 0.065 ohm after trip or reflow."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "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 has no pin numbering. The package drawing on page 5 shows two unmarked end terminals, ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 7,
        "cost_usd": 0.2657,
        "at": "2026-10-18T22:38:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588910128951136257",
        "pages": 7,
        "sha256": "4299de209bcfb317",
        "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.6,
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        ],
        "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": "1206l150slyr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          0.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "bdc025e4dbcd972c7b97bd6a82118868c1e67441417c85cf2f0204756302fba9",
        "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": "Terminal Material Solder-Plated Copper",
        "page": 4,
        "doc": "ds.pdf",
        "material": "Copper"
      },
      "version": 1,
      "datasheet_sha256": "4299de209bcfb317da117aa0520e7927c4b38a38083348bdf366fcdfab5888e5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4299de209bcfb317da117aa0520e7927c4b38a38083348bdf366fcdfab5888e5",
      "rows": [
        {
          "name": "Hold current (maximum current without tripping, 20°C still air)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "20°C still air; 1206L150SL row",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Trip current (minimum current at which device trips, 20°C still air)",
          "symbol": "I trip",
          "kind": "electrical",
          "unit": "A",
          "min": 3.9,
          "typ": null,
          "max": null,
          "conditions": "20°C still air; 1206L150SL row",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage device can withstand without damage",
          "symbol": "V max",
          "kind": "electrical",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "at rated current (I max); 1206L150SL row",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum fault current device can withstand without damage",
          "symbol": "I max",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "at rated voltage (V max); 1206L150SL row",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipated in tripped state",
          "symbol": "P d",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "tripped state, 20°C still air; typ.",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum time-to-trip time",
          "symbol": "",
          "kind": "electrical",
          "unit": "Sec.",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "at 8.00 A fault current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum resistance in initial (un-soldered) state",
          "symbol": "R min",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0.01,
          "typ": null,
          "max": null,
          "conditions": "initial un-soldered state",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum resistance at 20°C one hour after tripping or reflow soldering",
          "symbol": "R 1max",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 0.065,
          "conditions": "20°C, measured one hour after tripping or reflow soldering of 260°C for 20 sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Environmental specifications",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum device surface temperature in tripped state",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "tripped state",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Passive aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "+85°C, 1000 hours; typical resistance change",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Humidity aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "+85°C, 85% R.H., 100 hours; typical resistance change",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": -30,
          "max": null,
          "conditions": "MIL-STD-202 Method 107, +85°C/-40°C 20 times; typical resistance change",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reflow peak classification temperature (Pb-free)",
          "symbol": "TP",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "printed tolerance +0/-5 °C; Pb-free assembly profile",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient -40°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
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          "typ": 2.67,
          "max": null,
          "conditions": "ambient -40°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient -20°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": 2.32,
          "max": null,
          "conditions": "ambient -20°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 0°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": 1.95,
          "max": null,
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          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 20°C (reference only)",
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          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 40°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
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          "typ": 1.15,
          "max": null,
          "conditions": "ambient 40°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 60°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": 0.78,
          "max": null,
          "conditions": "ambient 60°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 70°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
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          "typ": 0.64,
          "max": null,
          "conditions": "ambient 70°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current rerating at ambient 85°C (reference only)",
          "symbol": "I hold",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": 0.52,
          "max": null,
          "conditions": "ambient 85°C; temperature rerating reference only",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
    "1206l150slyr"
  ],
  "discovery_pitch": "1206L150SLYR (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
  }
}