LRAN12CFTR033

{
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  "type": "component",
  "slug": "lran12cftr033",
  "title": "LRAN12CFTR033",
  "brief": "NCT Current Sense Resistors/Shunt Resistors, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "mpn": "LRAN12CFTR033",
    "manufacturer": "NCT",
    "package": "1206",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors/Shunt Resistors",
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      "lbr": "lran12cftr033.lbr"
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    "distributor_links": {
      "lcsc": "C5120999"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T08:10:02Z",
      "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": "One end electrode of the alloy current-sense resistor (1% F tolerance, 33 mΩ per the R033 code), rated 1 W for 1 mΩ to 39 mΩ parts, with resistance measured 4-wire on the back electrodes."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Opposite end electrode of the alloy current-sense resistor, non-polarized and interchangeable with the other terminal, with TCR ±50 ppm/°C and an operating range of -55 to +170 °C."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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": [
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          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.2015,
        "at": "2026-11-02T08:09:55"
      },
      "datasheet": {
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        "pages": 12,
        "sha256": "9468aafd42725899",
        "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"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          1.6,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f5d1ea5c47935091292bd1c6c698e0df88d3d4bbf92bf66b4c97e49df5be9ebc",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "NCT",
      "Package": "1206",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "9468aafd427258997f331efff38f62c91d89c644d57436fb00be771d86e7b870",
      "rows": [
        {
          "name": "Tolerance (code F = ±1%)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance (TCR)",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "1W family, 1mΩ~39mΩ range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Rated power",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": 1,
          "max": 1,
          "conditions": "Code C = 1W (1mΩ~39mΩ); derate above 70°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum rated current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 31.62,
          "conditions": "1W row, family table value",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum overload current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 70.71,
          "conditions": "1W row, family table value",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 170,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Short time overload – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "5 s applied at X5 rated power, rest 24 h",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Biased humidity – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "85°C/85%RH, rated current 90 min ON / 30 min OFF, 1,000 h",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Temperature cycling – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "-55°C to +125°C, 1000 cycles",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Low temperature exposure (storage) – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "-55±2°C, 1000 h",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "High temperature exposure (storage) – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "170°C, 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Load life – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "70±2°C, rated current 90 min ON / 30 min OFF, 1,000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Resistance to solder heat – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "260±5°C solder bath, 10±1 s",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Resistance to solvent – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Isopropyl alcohol 20~25°C, 60±5 s",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Joint strength of solder – resistance change",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Bend test board, under load",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Solderability – electrode solder coverage",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 95,
          "typ": null,
          "max": null,
          "conditions": "245±5°C solder bath, 3±1 s",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "100 VDC applied 1 min, electrode to protective layer and electrode to substrate",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 5,
          "typ": null,
          "max": 35,
          "conditions": "Sealed storage, shelf life 2 years, away from corrosive gases and direct sunlight",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Storage relative humidity",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%RH",
          "min": 40,
          "typ": null,
          "max": 75,
          "conditions": "Sealed storage, shelf life 2 years",
          "source_page": 11,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "LRAN12CFTR033 (NCT) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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}