main
Ray Set visibility: public 13c3014 8h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mf-msht075kx-2",
  "title": "MF-MSHT075KX-2",
  "brief": "BOURNS 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",
    "mf-msht075kx-2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MF-MSHT075KX-2",
    "manufacturer": "BOURNS",
    "package": "1812",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603008185091436544",
    "parts": {
      "symbol": "mf-msht075kx-2.kicad_sym",
      "footprint": "mf-msht075kx-2.kicad_mod",
      "model_3d": "mf-msht075kx-2-hero.glb",
      "model_3d_plain": "mf-msht075kx-2-etched.glb",
      "model_3d_step": "mf-msht075kx-2-etched.step",
      "model_3d_step_plain": "mf-msht075kx-2.step",
      "lbr": "mf-msht075kx-2.lbr"
    },
    "distributor_links": {
      "lcsc": "C3760581"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:18:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Terminal 1 of the non-polarized PTC resettable fuse (ENIG-plated terminal, 0.30 mm min. width D); MF-MSHT075KX is rated 30 V max, 0.75 A hold and 3.75 A trip at 23 °C."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of the non-polarized PTC resettable fuse (ENIG-plated terminal, 0.05 mm min. dimension E); MF-MSHT075KX is rated 40 A max. interrupt current at Vmax."
      }
    ],
    "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 draws a two-terminal 1812 SMD fuse. It prints no pin numbers or names, so '1' and '2' ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 7,
        "cost_usd": 0.2045,
        "at": "2026-10-18T14:15:00"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603008185091436544",
        "pages": 7,
        "sha256": "4ce172efa9eab263",
        "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-msht075kx-2.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": "a009dca070ba76228857cb60091d8d8996ed5507c957e188297865ddb0d0dc1f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mf-msht075kx-2-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": "f85af6fec122271131d0c713243eba394ac91a2053332e79b210b7bcc0022490",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BOURNS",
      "Package": "1812",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4ce172efa9eab2639151c426d26d443d31f78e1ff33e75b44e87a80fa60e9fe1",
      "rows": [
        {
          "name": "Maximum voltage (Vmax)",
          "symbol": "Vmax",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum current (Imax)",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance (R1)",
          "symbol": "R1",
          "kind": "tolerance",
          "unit": "Ω",
          "min": 0.09,
          "typ": null,
          "max": 0.85,
          "conditions": "at 23 °C, still air; R1max measured 24 h post reflow",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum time to trip",
          "symbol": "t_trip",
          "kind": "electrical",
          "unit": "s",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "at 8.0 A, Vmax, 23 °C, still air",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Hold current",
          "symbol": "Ihold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.75,
          "max": null,
          "conditions": "at 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Trip current",
          "symbol": "Itrip",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3.75,
          "max": null,
          "conditions": "at 23 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Tripped power dissipation",
          "symbol": "",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "typical",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Recommended storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Recommended storage, 70 % R.H. max.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at -40 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 1.09,
          "max": null,
          "conditions": "ambient -40 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at -20 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.98,
          "max": null,
          "conditions": "ambient -20 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at 0 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.87,
          "max": null,
          "conditions": "ambient 0 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +23 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.75,
          "max": null,
          "conditions": "ambient +23 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +40 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.66,
          "max": null,
          "conditions": "ambient +40 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +50 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.61,
          "max": null,
          "conditions": "ambient +50 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +60 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.56,
          "max": null,
          "conditions": "ambient +60 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +70 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "ambient +70 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +85 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.42,
          "max": null,
          "conditions": "ambient +85 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ihold thermal derating at +125 °C ambient",
          "symbol": "Ihold",
          "kind": "temperature_coefficient",
          "unit": "A",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "ambient +125 °C",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mf-msht075kx-2"
  ],
  "discovery_pitch": "MF-MSHT075KX-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-msht075kx-2.kicad_sym",
    "mf-msht075kx-2.kicad_mod",
    "mf-msht075kx-2.glb",
    "mf-msht075kx-2.step",
    "mf-msht075kx-2.lbr",
    "docs/hero.png",
    "docs/mf-msht075kx-2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mf-msht075kx-2-hero.glb",
    "mf-msht075kx-2-hero.overlay.json",
    "mf-msht075kx-2-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}