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Ray Set visibility: public ea712e3 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mf-usmf020-2",
  "title": "MF-USMF020-2",
  "brief": "BOURNS Resettable Fuses, 1210. 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",
    "mf-usmf020-2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MF-USMF020-2",
    "manufacturer": "BOURNS",
    "package": "1210",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588910041957482497",
    "parts": {
      "symbol": "mf-usmf020-2.kicad_sym",
      "footprint": "mf-usmf020-2.kicad_mod",
      "model_3d": "mf-usmf020-2-hero.glb",
      "model_3d_plain": "mf-usmf020-2-etched.glb",
      "model_3d_step": "mf-usmf020-2-etched.step",
      "model_3d_step_plain": "mf-usmf020-2.step",
      "lbr": "mf-usmf020-2.lbr"
    },
    "distributor_links": {
      "lcsc": "C210829",
      "digikey": "MF-USMF020-2TR-ND",
      "mouser": "652-MF-USMF020-2"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:52:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MF-USMF020-2TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "652-MF-USMF020-2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Non-polarized terminal of the MF-USMF020 PTC resettable fuse (Ihold 0.20 A, Vmax 30 V, Imax 10 A), interchangeable with the other terminal."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Non-polarized terminal of the MF-USMF020 PTC resettable fuse (Ihold 0.20 A, Vmax 30 V, Imax 10 A), 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 2 shows two end terminals but prints no pin numbers or names. Numbers 1 ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.1335,
        "at": "2026-10-18T06:50:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588910041957482497",
        "pages": 4,
        "sha256": "74014e5b17460aca",
        "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": "mf-usmf020-2.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": "mf-usmf020-2-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": "ac3c1c36906b20fe5a64962021d8b3de68a5c6bb1644d7d29e1d4409c61a0ac0",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BOURNS",
      "Package": "1210",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminal material: Electroless Ni under immersion Au",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "gold"
      },
      "version": 1,
      "datasheet_sha256": "74014e5b17460aca9b40e93acafa5f375b8523f1f858792ad16701384292ac48"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "74014e5b17460aca9b40e93acafa5f375b8523f1f858792ad16701384292ac48",
      "rows": [
        {
          "name": "Resistance, minimum (at 23 °C)",
          "symbol": "RMin.",
          "kind": "electrical",
          "unit": "Ohms",
          "min": 0.4,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance, maximum (at 23 °C)",
          "symbol": "R1Max.",
          "kind": "electrical",
          "unit": "Ohms",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage (Vmax)",
          "symbol": "V max.",
          "kind": "absolute_maximum",
          "unit": "Volts",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum current (Imax)",
          "symbol": "I max.",
          "kind": "absolute_maximum",
          "unit": "Amps",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Hold current (at 23 °C)",
          "symbol": "Ihold",
          "kind": "electrical",
          "unit": "Amperes",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "at 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Trip current (at 23 °C)",
          "symbol": "Itrip",
          "kind": "electrical",
          "unit": "Amperes",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "at 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Max. time to trip (at 23 °C)",
          "symbol": "",
          "kind": "timing",
          "unit": "Seconds",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "At specified current, Vmax, 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Tripped power dissipation (at 23 °C)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Watts",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "at 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance change, passive aging",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85 °C, 1000 hours; typical resistance change",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance change, humidity aging",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85 °C, 85 % R.H. 1000 hours; typical resistance change",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance change, thermal shock",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "+85 °C to -40 °C, 20 times; typical resistance change",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mf-usmf020-2"
  ],
  "discovery_pitch": "MF-USMF020-2 (BOURNS) 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",
    "mf-usmf020-2.kicad_sym",
    "mf-usmf020-2.kicad_mod",
    "mf-usmf020-2.glb",
    "mf-usmf020-2.step",
    "mf-usmf020-2.lbr",
    "docs/hero.png",
    "docs/mf-usmf020-2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mf-usmf020-2-hero.glb",
    "mf-usmf020-2-hero.overlay.json",
    "mf-usmf020-2-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}