CFR-50JB-52-1K3

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  "slug": "cfr-50jb-52-1k3",
  "title": "CFR-50JB-52-1K3",
  "brief": "YAGEO Through Hole Resistors, 插件,D3.3xL9mm. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
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    "mpn": "CFR-50JB-52-1K3",
    "manufacturer": "YAGEO",
    "package": "R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Through Hole Resistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755266485805686784",
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      "lbr": "cfr-50jb-52-1k3.lbr",
      "model_3d_plain": "cfr-50jb-52-1k3.glb"
    },
    "distributor_links": {
      "lcsc": "C1369088",
      "digikey": "13-CFR-50JB-52-1K3-ND",
      "mouser": "603-CFR-50JB-52-1K3"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T07:34:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "13-CFR-50JB-52-1K3-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "603-CFR-50JB-52-1K3",
        "status": "found"
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    },
    "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": {
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        "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"
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        "pages_sent": 16,
        "cost_usd": 0.0024,
        "at": "2026-11-06T07:34:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755266485805686784",
        "pages": 16,
        "sha256": "76319a6451937e77",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          3.2,
          6.2
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        "zmin_mm": -3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ccfacca9fc7ae291c5d1d457d716f8bf1a41d9f9d558fab89ca042784fe0ad70",
        "checked": "2026-11-06",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "YAGEO",
      "Package": "R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "76319a6451937e7734a6833f620890256273d6d5bc18237e5425bb0e07a2a143",
      "rows": [
        {
          "name": "Resistance tolerance (code J)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "J = ±5% per part-number tolerance code",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -500,
          "typ": null,
          "max": 350,
          "conditions": "Under 100KΩ; CFR-12/CFR-25/CFR-50 row of Table 2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power rating",
          "symbol": "P",
          "kind": "recommended_operating",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "At 70 °C ambient; printed as 1/2W (CFR-50)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum working voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "CFR-50 column; RCWV = √(P×R) or max working voltage, whichever is less",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum overload voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "CFR-50 column",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "T",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 155,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Resistance range",
          "symbol": "R",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "For E24 series values; 1Ω ~ 10MΩ",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short time overload – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.75,
          "typ": null,
          "max": 0.75,
          "conditions": "2.5 times RCWV for 5 sec (not more than max overload voltage); plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 1000,
          "typ": null,
          "max": null,
          "conditions": "In V-Block for 60 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Solderability – min. coverage",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 95,
          "typ": null,
          "max": null,
          "conditions": "245±5°C for 3±0.5 Sec.",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Robustness of terminations – min. load",
          "symbol": "",
          "kind": "electrical",
          "unit": "N",
          "min": 24.5,
          "typ": null,
          "max": null,
          "conditions": "Direct load for 10 Sec. in the direction of the terminal leads; printed ≥2.5Kg(24.5N)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Periodic-pulse overload – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "4 times RCWV (or Umax., whichever less), 10,000 cycles (1 Sec. on, 25 Sec. off); plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Damp heat steady state – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV (or Umax., whichever less); plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Endurance at 70°C – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "70±2°C at RCWV (or Umax., whichever less) for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off); plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature cycling – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "-55°C ➔ Room Temp. ➔ +155°C ➔ Room Temp. (5 cycles); plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistance to soldering heat – ΔR limit",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body; plus additional ±0.05Ω",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "CFR-50JB-52-1K3 (YAGEO) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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