F12F3

{
  "schema_version": 1,
  "type": "component",
  "slug": "f12f3",
  "title": "F12F3",
  "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",
    "f12f3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "F12F3",
    "manufacturer": "TLC Electronic",
    "package": "1206",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Disposable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207940218159104",
    "parts": {
      "symbol": "f12f3.kicad_sym",
      "footprint": "f12f3.kicad_mod",
      "model_3d": "f12f3-hero.glb",
      "model_3d_plain": "f12f3-etched.glb",
      "model_3d_step": "f12f3-etched.step",
      "model_3d_step_plain": "f12f3.step",
      "lbr": "f12f3.lbr"
    },
    "distributor_links": {
      "lcsc": "C2924989"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T08:01:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One end-cap terminal of the non-polarized 3A fast-acting fuse (72V DC rated, 50A breaking capacity at 72Vdc, 48 mOhm typical cold resistance)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Other end-cap terminal of the non-polarized 3A fast-acting fuse (72V DC rated, 50A breaking capacity at 72Vdc, 48 mOhm typical cold resistance)."
      }
    ],
    "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 drawing (page 2) shows two end-cap terminals on a 3.20x1.60 mm body but prints no pin ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0829,
        "at": "2026-10-19T07:59:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207940218159104",
        "pages": 5,
        "sha256": "c2cfcade5bcf6391",
        "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": "f12f3.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "f12f3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3d93f70a3765f11d53468b88b517166d60363e4826fe2fe66c5cb27803e9272c",
        "checked": "2026-10-19",
        "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": "c2cfcade5bcf63911a8806a2eb9f1d5b5fbe77f1f981d4dd12b0760b8396de76",
      "rows": [
        {
          "name": "Opening time at rated current 1.0In (min)",
          "symbol": "",
          "kind": "electrical",
          "unit": "hour",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "Rated Current 1.0In, 3A part",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Opening time at rated current 2.5In (max)",
          "symbol": "",
          "kind": "electrical",
          "unit": "sec",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Rated Current 2.5In, 3A part",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated voltage DC",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 72,
          "conditions": "Part No F12F3",
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          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "with proper correction factor applied",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Wave solder reservoir temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Wave solder, reservoir temperature",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Wave solder time in reservoir",
          "symbol": "",
          "kind": "thermal",
          "unit": "seconds",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Wave solder, time in reservoir",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Infrared reflow temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Infrared reflow",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Infrared reflow time",
          "symbol": "",
          "kind": "thermal",
          "unit": "seconds",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "Infrared reflow, time",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Preheat and soak temperature min (Tsmin)",
          "symbol": "Tsmin",
          "kind": "thermal",
          "unit": "℃",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Preheat and soak temperature max (Tsmax)",
          "symbol": "Tsmax",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Preheat and soak time (Tsmin to Tsmax)",
          "symbol": "tS",
          "kind": "thermal",
          "unit": "Seconds",
          "min": 60,
          "typ": null,
          "max": 120,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Average ramp up rate Tsmax to Tp",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃ / Second",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time at liquidous",
          "symbol": "tL",
          "kind": "thermal",
          "unit": "Seconds",
          "min": 60,
          "typ": null,
          "max": 150,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Peak package body temperature",
          "symbol": "TP",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Lead (Pb) free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time (tP) within 5℃ of classification temperature (TC)",
          "symbol": "tP",
          "kind": "thermal",
          "unit": "Seconds",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "within 5℃ of the specified classification temperature (TC)",
          "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 (Pb) 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 (Pb) free solder reflow profile",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "Part No F12F3 (3A rating)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC breaking capacity",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "@72Vdc; 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": 48,
          "max": null,
          "conditions": "measured at <10% of rated current in ambient temperature of 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical voltage drop",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 187,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical pre-arcing I2t",
          "symbol": "I2t",
          "kind": "electrical",
          "unit": "A2Sec",
          "min": null,
          "typ": 1.39,
          "max": null,
          "conditions": "measured at 10In current",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "f12f3"
  ],
  "discovery_pitch": "F12F3 (TLC Electronic) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "viewers/footprint.html",
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    "f12f3-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}