ASMD1812-110

{
  "schema_version": 1,
  "type": "component",
  "slug": "asmd1812-110",
  "title": "ASMD1812-110",
  "brief": "Shenzhen JDT Fuse Resettable Fuses, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "circuit protection",
    "asmd1812-110",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ASMD1812-110",
    "manufacturer": "Shenzhen JDT Fuse",
    "package": "1812",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899520977776641",
    "parts": {
      "symbol": "asmd1812-110.kicad_sym",
      "footprint": "asmd1812-110.kicad_mod",
      "model_3d": "asmd1812-110-hero.glb",
      "model_3d_plain": "asmd1812-110-etched.glb",
      "model_3d_step": "asmd1812-110-etched.step",
      "model_3d_step_plain": "asmd1812-110.step",
      "lbr": "asmd1812-110.lbr"
    },
    "distributor_links": {
      "lcsc": "C135360"
    },
    "distributor_check": {
      "checked_at": "2026-10-14T17:45:06Z",
      "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": "Terminal 1 of an unpolarised fuse; either orientation."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of an unpolarised fuse; either orientation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "primary_model": "two-terminal convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0023,
        "at": "2026-10-14T17:44:45"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899520977776641",
        "pages": 10,
        "sha256": "9a262a458868b11e",
        "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": "asmd1812-110.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": "36721f2e2804d13cfb86b2420ccffd36aa6398cdf82478fa188cd9485350a452",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "asmd1812-110-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5a7e44808b370b5c195d2963d9521b730a9ada902151df877a85ca8664ab240e",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen JDT Fuse",
      "Package": "1812",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "9a262a458868b11eb2facf48823d7189367b8c17b344838d3445e6e55c72bb43",
      "rows": [
        {
          "name": "Maximum operating voltage (V max), ASMD1812-110 base part",
          "symbol": "V max",
          "kind": "absolute_maximum",
          "unit": "V dc",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "Maximum operating voltage at rated current (Imax)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum fault current (I max)",
          "symbol": "I max",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "At rated voltage (V max)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Hold current (I hold)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.1,
          "max": null,
          "conditions": "25°C still air; device will not trip",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Trip current (I trip)",
          "symbol": "I trip",
          "kind": "electrical",
          "unit": "A",
          "min": 2.2,
          "typ": null,
          "max": null,
          "conditions": "25°C still air; minimum current at which device always trips",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum resistance prior to tripping (R i min)",
          "symbol": "R i min",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0.045,
          "typ": null,
          "max": null,
          "conditions": "25°C, prior to tripping",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum resistance one hour post reflow (R1max)",
          "symbol": "R1max",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "Measured one hour post reflow",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation in tripped state (P d typ)",
          "symbol": "P d",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "Tripped state, 25°C still air, at rated voltage",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Passive aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85°C, 1000 hrs; ±5% typical",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Humidity aging resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85°C, 85% R.H., 168 hours; ±5% typical",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock resistance change",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -33,
          "typ": null,
          "max": 33,
          "conditions": "+85°C to -40°C, 20 times; ±33% typical",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Ambient operating conditions",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum surface temperature in tripped state",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Device in tripped state",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient -40°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.6,
          "max": null,
          "conditions": "Ambient -40°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient -20°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.45,
          "max": null,
          "conditions": "Ambient -20°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 0°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.28,
          "max": null,
          "conditions": "Ambient 0°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 25°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.1,
          "max": null,
          "conditions": "Ambient 25°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 40°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.92,
          "max": null,
          "conditions": "Ambient 40°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 50°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.66,
          "max": null,
          "conditions": "Ambient 50°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 60°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.83,
          "max": null,
          "conditions": "Ambient 60°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 70°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.71,
          "max": null,
          "conditions": "Ambient 70°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold current at ambient 85°C (Ihold vs ambient)",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.52,
          "max": null,
          "conditions": "Ambient 85°C; thermal derating chart for ASMD1812-110",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Storage conditions: 40°C max, 70% R.H. max",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Peak reflow temperature (Tp), Pb-free",
          "symbol": "Tp",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Pb-free reflow profile peak temperature",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "asmd1812-110"
  ],
  "discovery_pitch": "ASMD1812-110 (Shenzhen JDT Fuse) 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",
    "asmd1812-110.kicad_sym",
    "asmd1812-110.kicad_mod",
    "asmd1812-110.glb",
    "asmd1812-110.step",
    "asmd1812-110.lbr",
    "docs/hero.png",
    "docs/asmd1812-110-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "asmd1812-110-hero.glb",
    "asmd1812-110-hero.overlay.json",
    "asmd1812-110-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}