main
Ray Set visibility: public f7cad5e 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "f12t4-5",
  "title": "F12T4.5",
  "brief": "TLC Electronic 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",
    "f12t4.5",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "F12T4.5",
    "manufacturer": "TLC Electronic",
    "package": "1206",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Disposable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207940272414720",
    "parts": {
      "symbol": "f12t4-5.kicad_sym",
      "footprint": "f12t4-5.kicad_mod",
      "model_3d": "f12t4-5-hero.glb",
      "model_3d_plain": "f12t4-5-etched.glb",
      "model_3d_step": "f12t4-5-etched.step",
      "model_3d_step_plain": "f12t4-5.step",
      "lbr": "f12t4-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C2925015"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:29:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One end-cap terminal of the non-polarized 4.5A, 32V DC slow-blow fuse, with 29 mOhm typical cold resistance and 50A DC breaking capacity."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Opposite end-cap terminal of the non-polarized 4.5A, 32V DC slow-blow fuse, interchangeable with the other terminal and soldered to a 1.52 x 2.03 mm land."
      }
    ],
    "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 package drawing (page 3) shows two end-cap terminals but prints no pin numbers or name",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0824,
        "at": "2026-10-18T05:27:07"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207940272414720",
        "pages": 6,
        "sha256": "4e67f3bd8ce84db0",
        "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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        "file": "f12t4-5.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": "f12t4-5-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,
        "footprint_binding": "identity",
        "sha256": "d7b0221a46769e7de88aca7bd3ab317f3ad34555cbda1a296edce37ece5aa923",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TLC Electronic",
      "Package": "1206",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4e67f3bd8ce84db050e1c6706be1887507742073a3c358ecfcd68853e15f0d4b",
      "rows": [
        {
          "name": "Opening time at rated current 1.0In (minimum)",
          "symbol": "",
          "kind": "timing",
          "unit": "hour",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "At 1.0In rated current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Opening time at rated current 2.5In (maximum)",
          "symbol": "",
          "kind": "timing",
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          "conditions": "At 2.5In rated current",
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        },
        {
          "name": "Opening time at rated current 3.0In",
          "symbol": "",
          "kind": "timing",
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          "max": 3,
          "conditions": "At 3.0In rated current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Opening time at rated current 10.0In",
          "symbol": "",
          "kind": "timing",
          "unit": "ms",
          "min": 0.2,
          "typ": null,
          "max": 20,
          "conditions": "At 10.0In rated current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "With proper correction factor applied",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Wave solder time in reservoir",
          "symbol": "",
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          "typ": null,
          "max": 10,
          "conditions": "Wave solder, reservoir temperature 260℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Infrared reflow time",
          "symbol": "",
          "kind": "thermal",
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          "conditions": "Infrared reflow, temperature 260℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Preheat and soak temperature (Tsmin)",
          "symbol": "Tsmin",
          "kind": "thermal",
          "unit": "°C",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "Lead-free solder reflow profile, preheat and soak",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Preheat and soak temperature (Tsmax)",
          "symbol": "Tsmax",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
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          "conditions": "Lead-free solder reflow profile, preheat and soak",
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        },
        {
          "name": "Preheat and soak time (tS)",
          "symbol": "tS",
          "kind": "thermal",
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          "min": 60,
          "typ": null,
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          "conditions": "Tsmin to Tsmax",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Average ramp-up rate Tsmax to Tp",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃/Second",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Liquidous temperature (TL)",
          "symbol": "TL",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 217,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time at liquidous (tL)",
          "symbol": "tL",
          "kind": "thermal",
          "unit": "sec",
          "min": 60,
          "typ": null,
          "max": 150,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Average ramp-down rate (TP to Tsmax)",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃/Second",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time from 25℃ to peak temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "Minutes",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 4.5,
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          "source": "datasheet"
        },
        {
          "name": "Rated voltage",
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          "min": null,
          "typ": 32,
          "max": null,
          "conditions": "DC",
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          "source": "datasheet"
        },
        {
          "name": "Rated breaking capacity (DC interrupting rating)",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "Measured at rated voltage, time constant of less than 50 microseconds, battery source",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical cold resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mOhms",
          "min": null,
          "typ": 29,
          "max": null,
          "conditions": "Measured at <10% of rated current, ambient 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical voltage drop",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 164,
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          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Typical pre-arcing I2t",
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          "kind": "electrical",
          "unit": "A2Sec",
          "min": null,
          "typ": 2.65,
          "max": null,
          "conditions": "Measured at 10In current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Wave solder reservoir temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "Wave solder",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Infrared reflow temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "Infrared reflow",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Peak package body temperature (TP)",
          "symbol": "TP",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "Lead-free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time within 5℃ of classification temperature (tP)",
          "symbol": "tP",
          "kind": "thermal",
          "unit": "Seconds",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "Within 5℃ of TC",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "f12t4.5"
  ],
  "discovery_pitch": "F12T4.5 (TLC Electronic) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "f12t4-5.kicad_sym",
    "f12t4-5.kicad_mod",
    "f12t4-5.glb",
    "f12t4-5.step",
    "f12t4-5.lbr",
    "docs/hero.png",
    "docs/f12t4-5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "f12t4-5-hero.glb",
    "f12t4-5-hero.overlay.json",
    "f12t4-5-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}