QN0805X104F4250FB

{
  "schema_version": 1,
  "type": "component",
  "slug": "qn0805x104f4250fb",
  "title": "QN0805X104F4250FB",
  "brief": "QAMcn NTC Thermistors, 0805. 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",
    "sensors",
    "qn0805x104f4250fb",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "QN0805X104F4250FB",
    "manufacturer": "QAMcn",
    "package": "0805",
    "pin_count": 2,
    "category": "Sensors",
    "subcategory": "NTC Thermistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934710680961024",
    "parts": {
      "symbol": "qn0805x104f4250fb.kicad_sym",
      "footprint": "qn0805x104f4250fb.kicad_mod",
      "model_3d": "qn0805x104f4250fb-hero.glb",
      "model_3d_plain": "qn0805x104f4250fb-etched.glb",
      "model_3d_step": "qn0805x104f4250fb-etched.step",
      "model_3d_step_plain": "qn0805x104f4250fb.step",
      "lbr": "qn0805x104f4250fb.lbr"
    },
    "distributor_links": {
      "lcsc": "C700817"
    },
    "distributor_check": {
      "checked_at": "2026-10-14T08:29:49Z",
      "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 resistor; either orientation."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of an unpolarised resistor; 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": 13,
        "cost_usd": 0.0899,
        "at": "2026-10-14T08:29:36"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934710680961024",
        "pages": 13,
        "sha256": "1c8bcbff66081bce",
        "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": "qn0805x104f4250fb.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.2,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ded342cdb394fb45395227beaaa75cc390613cf2581b29cd6d22c12abd6103b2",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "qn0805x104f4250fb-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.2,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5cbb86ab393aaa6e908dac5e18e48859b0471451cf31a83e9c053d401214e9b2",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "QAMcn",
      "Package": "0805",
      "Category": "Sensors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1c8bcbff66081bce720e3580b49b6dd52e3f89ca454e6cf779e05f4a535c0c7e",
      "rows": [
        {
          "name": "Zero-power resistance tolerance (F = ±1%)",
          "symbol": "R25",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "B constant tolerance (F = ±1%), B(25/50)",
          "symbol": "B25/50",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resistance at 25℃ (R-T table, R_Min/R_Max)",
          "symbol": "R25",
          "kind": "tolerance",
          "unit": "kΩ",
          "min": 99,
          "typ": 100,
          "max": 101,
          "conditions": "R-T table at 25℃, Res TOL. 1.00%",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Resistance at -40℃ (R-T table, R_Min/R_Max)",
          "symbol": "R-40",
          "kind": "tolerance",
          "unit": "kΩ",
          "min": 4191.522,
          "typ": 4397.119,
          "max": 4612.34,
          "conditions": "R-T table at -40℃, Res TOL. 4.89%",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Resistance at 125℃ (R-T table, R_Min/R_Max)",
          "symbol": "R125",
          "kind": "tolerance",
          "unit": "kΩ",
          "min": 2.407,
          "typ": 2.522,
          "max": 2.643,
          "conditions": "R-T table at 125℃, Res TOL. 4.79%",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Operating ambient temperature",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -10,
          "typ": null,
          "max": 40,
          "conditions": "Storage",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Storage relative humidity",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%RH",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "Storage, ≤75%RH",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after dry heat storage",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "125±5℃ in air, 1000±24 h, no load; printed |ΔR25/R25| ≤5%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "B constant change after dry heat storage",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "125±5℃ in air, 1000±24 h, no load; printed |ΔB/B| ≤2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after temperature cycling",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "5 cycles -40℃ to 125℃, no load; printed |ΔR25/R25| ≤3%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "B constant change after temperature cycling",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "5 cycles -40℃ to 125℃, no load; printed |ΔB/B| ≤2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after resistance to soldering heat",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "260±5℃, 10±1 s; printed |ΔR25/R25| ≤5%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "B constant change after resistance to soldering heat",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "260±5℃, 10±1 s; printed |ΔB/B| ≤2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after resistance to cold",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "-40±3℃ in air, 1000±24 h, no load; printed |ΔR25/R25| ≤5%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "B constant change after resistance to cold",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "-40±3℃ in air, 1000±24 h, no load; printed |ΔB/B| ≤2%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after resistance to damp heat",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "40±2℃, 90~95%RH, 1000±24 h, no load; printed |ΔR25/R25| ≤3%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "B constant change after resistance to damp heat",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "40±2℃, 90~95%RH, 1000±24 h, no load; printed |ΔB/B| ≤2%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after high temperature load",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "85±2℃ in air, permissive operating current, 1000±48 h; printed |ΔR25/R25| ≤5%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "B constant change after high temperature load",
          "symbol": "ΔB/B",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "85±2℃ in air, permissive operating current, 1000±48 h; printed |ΔB/B| ≤2%",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after resistance to flexure",
          "symbol": "ΔR25/R25",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "0805, bend 2 mm, 10±1 s; printed |ΔR25/R25| ≤5%",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Nominal zero-power resistance",
          "symbol": "R25",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal B constant B(25/50)",
          "symbol": "B25/50",
          "kind": "electrical",
          "unit": "K",
          "min": null,
          "typ": 4250,
          "max": null,
          "conditions": "25/50℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal B constant B(25/85)",
          "symbol": "B25/85",
          "kind": "electrical",
          "unit": "K",
          "min": null,
          "typ": 4310,
          "max": null,
          "conditions": "25/85℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dissipation factor",
          "symbol": "δ",
          "kind": "electrical",
          "unit": "mW/℃",
          "min": null,
          "typ": 0.14,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Permissible operating current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated electric power",
          "symbol": "",
          "kind": "electrical",
          "unit": "mW",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal time constant",
          "symbol": "",
          "kind": "thermal",
          "unit": "s",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "printed ＜5 s",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "qn0805x104f4250fb"
  ],
  "discovery_pitch": "QN0805X104F4250FB (QAMcn) 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",
    "qn0805x104f4250fb.kicad_sym",
    "qn0805x104f4250fb.kicad_mod",
    "qn0805x104f4250fb.glb",
    "qn0805x104f4250fb.step",
    "qn0805x104f4250fb.lbr",
    "docs/hero.png",
    "docs/qn0805x104f4250fb-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "qn0805x104f4250fb-hero.glb",
    "qn0805x104f4250fb-hero.overlay.json",
    "qn0805x104f4250fb-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}