main
Ray Set visibility: public ef67597 15d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "frm253wjr005tm",
  "title": "FRM253WJR005TM",
  "brief": "FOJAN Current Sense Resistors / Shunt Resistors, 2512. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "resistors",
    "frm253wjr005tm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FRM253WJR005TM",
    "manufacturer": "FOJAN",
    "package": "2512",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors / Shunt Resistors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b47da348e6587de9f1f028172ba2b8ea.pdf",
    "parts": {
      "symbol": "frm253wjr005tm.kicad_sym",
      "footprint": "frm253wjr005tm.kicad_mod",
      "model_3d": "frm253wjr005tm-hero.glb",
      "model_3d_plain": "frm253wjr005tm-etched.glb",
      "model_3d_step": "frm253wjr005tm-etched.step",
      "model_3d_step_plain": "frm253wjr005tm.step",
      "lbr": "frm253wjr005tm.lbr"
    },
    "distributor_links": {
      "lcsc": "C48533600"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T14:22:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "First terminal (electrode) of the 5 mΩ alloy current-sense resistor, 2512 size, 63 A rated current and 141 A max overload for the 2512 type."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second terminal (electrode) of the resistor, interchangeable with the first, with Kelvin four-terminal resistance measured at the bottom of the product and an operating temperature of -55°C to 170°C."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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": [
          "extractor flagged: The datasheet gives no pin-number assignment. It is a two-electrode chip resistor, so pins 1 and 2 a; The MPN power code is '3W', which is not in the part-number table (05, 1W, 15, 2W). The datasheet li",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1883,
        "at": "2026-10-19T14:20:09"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b47da348e6587de9f1f028172ba2b8ea.pdf",
        "pages": 12,
        "sha256": "13a1c74e6b23cc10",
        "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": "frm253wjr005tm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.3,
          3.2,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "76b2052a3c120193de7cdc0af99157b6f375e9a4af7721e3e3d012968c877f27",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "frm253wjr005tm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.2,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e995428a22fdc141831a66a6b1b5dfb117973ba72c155a1ae343d6ee1b55785f",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FOJAN",
      "Package": "2512",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "13a1c74e6b23cc103f7c52a55ce0edc65423850e201e50a32caf4d07cd5fd420",
      "rows": [
        {
          "name": "Resistance tolerance (part-number code J)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "Part-number tolerance code J = ±5%",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "Measuring points 25°C and +125°C, reference point +25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance range (type 2512)",
          "symbol": "R",
          "kind": "electrical",
          "unit": "mΩ",
          "min": 1,
          "typ": null,
          "max": 680,
          "conditions": "Type 2512 standard part; 2512-L range (0.5–4 mΩ) not applicable",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 170,
          "conditions": "Operating temperature range, all types",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage humidity",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%RH",
          "min": 30,
          "typ": null,
          "max": 70,
          "conditions": "Storage/carry conditions",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High temperature exposure ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "T=170℃, 1000 hrs, measured 24 hrs after test conclusion",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low temperature exposure ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "T=-55℃, 1000 hrs, measured 24 hrs after test conclusion",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature cycling ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "1000 cycles (-55℃ to 125℃), measured 24 hrs after test conclusion",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short time overload ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "5 X rated power for 5 s",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Moisture resistance ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "24 hours per cycle, 10 cycles, zero power",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Biased humidity ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "10% rated power at 85℃, RH 85%, 1000 hrs, measured 24 hrs after test",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load life ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "1000 h at +70 °C, 1.5 h ON / 0.5 h OFF, measured 24 hrs after test",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Resistance to soldering heat ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "260±5℃ solder, 10±1 sec dwell",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Mechanical shock ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "100 g's, half sine, 6 ms, 3 shocks in each of 6 directions",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Resistance to vibration ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "5 g's, 20 min per cycle, 10–2000 Hz, 12 cycles in X, Y, Z",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Board flex ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Min 2 mm deflection, 60 sec",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "-55°C/+155°C, 1000 cycles, 15 min dwell, transfer time max 20 s",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "ESD ΔR",
          "symbol": "△R",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Direct contact ±6 kV; air discharge +12/+16/+25 kV",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Resistance nominal value (part code R005)",
          "symbol": "R",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "Part-number code R005 = 5mΩ; Kelvin four-terminal measurement at bottom test point",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated power at P70",
          "symbol": "P70",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "Type 2512 (standard), power rating at P70",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 63,
          "max": null,
          "conditions": "Type 2512 (standard); printed without min/max designation",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max overload current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 141,
          "max": null,
          "conditions": "Type 2512 (standard); printed without min/max designation",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dielectric withstanding voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V DC",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "Listed under features; printed as 500V DC withstanding voltage",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "frm253wjr005tm"
  ],
  "discovery_pitch": "FRM253WJR005TM (FOJAN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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}