K1206L150

{
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  "type": "component",
  "slug": "k1206l150",
  "title": "K1206L150",
  "brief": "KUU Resettable Fuses, 1206. 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",
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    "manufacturer": "KUU",
    "package": "1206",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
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      "mouser": {
        "pn": null,
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        "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."
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      "factory_chain": {
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        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "cost_usd": 0.001,
        "at": "2026-10-17T11:15:13"
      },
      "datasheet": {
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        "pages": 3,
        "sha256": "8ecfcba6b435669a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "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": "5e6dcbe286696143d35a8ea37d91eef4b54ff3d1bd7c2c2b4dedda83d3f8e203",
        "checked": "2026-10-17",
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      },
      {
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "KUU",
      "Package": "1206",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminal pad materials：Tin-plated Nickel-Copper",
        "page": 3,
        "doc": "ds.pdf",
        "material": "Copper",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "8ecfcba6b435669ad7dfcde5e0271784b3ed5c4c0a325768fdb7fbe6a01da9de"
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    "characteristics": {
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          "name": "Maximum operating voltage (rated current)",
          "symbol": "V max",
          "kind": "absolute_maximum",
          "unit": "V dc",
          "min": null,
          "typ": null,
          "max": 16,
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        {
          "name": "Maximum fault current (rated voltage)",
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          "min": null,
          "typ": null,
          "max": 35,
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        },
        {
          "name": "Hold current",
          "symbol": "I hold",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "25°C still air; device will not trip",
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        },
        {
          "name": "Trip current",
          "symbol": "I trip",
          "kind": "electrical",
          "unit": "A",
          "min": 3,
          "typ": null,
          "max": null,
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        {
          "name": "Device resistance prior to tripping",
          "symbol": "Ri",
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        {
          "name": "Maximum device resistance one hour post reflow",
          "symbol": "R1max",
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          "typ": null,
          "max": 0.13,
          "conditions": "Measured one hour post reflow",
          "source_page": 1,
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        },
        {
          "name": "Resistance change, passive aging",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "+85°C, 1000 hrs (typical)",
          "source_page": 1,
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        },
        {
          "name": "Resistance change, humidity aging",
          "symbol": "",
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        {
          "name": "Resistance change, thermal shock",
          "symbol": "",
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          "min": -33,
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          "conditions": "+85°C to -40°C, 20 times (typical)",
          "source_page": 1,
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        },
        {
          "name": "Ambient operating temperature",
          "symbol": "",
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          "unit": "°C",
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          "conditions": "Ambient operating conditions",
          "source_page": 1,
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        },
        {
          "name": "Maximum surface temperature in tripped state",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Device in the tripped state",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation in tripped state",
          "symbol": "Pd",
          "kind": "electrical",
          "unit": "W",
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          "typ": 0.8,
          "max": null,
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          "source_page": 1,
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        },
        {
          "name": "Time to trip",
          "symbol": "",
          "kind": "electrical",
          "unit": "Sec",
          "min": null,
          "typ": 0.3,
          "max": null,
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          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
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          "unit": "°C",
          "min": 0,
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          "source_page": 2,
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        },
        {
          "name": "Storage relative humidity",
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          "conditions": "Storage condition, 0°C~35°C",
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        },
        {
          "name": "Preheat temperature",
          "symbol": "Ts",
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          "min": 150,
          "typ": null,
          "max": 200,
          "conditions": "Pb-free reflow profile, preheat",
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        {
          "name": "Preheat time",
          "symbol": "",
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          "typ": null,
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Time maintained above liquidus temperature",
          "symbol": "tL",
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          "name": "Peak reflow temperature",
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          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Pb-free reflow profile; devices may not meet specs if reflow exceeds profile",
          "source_page": 2,
          "source": "datasheet"
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          "name": "Average ramp-up rate (Ts max to Tp)",
          "symbol": "",
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        {
          "name": "Ramp-down rate",
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          "typ": null,
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Time from 25°C to peak temperature",
          "symbol": "",
          "kind": "timing",
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          "typ": null,
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          "conditions": "Pb-free reflow profile",
          "source_page": 2,
          "source": "datasheet"
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  "discovery_pitch": "K1206L150 (KUU) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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