FRM252WJR300TK

{
  "schema_version": 1,
  "type": "component",
  "slug": "frm252wjr300tk",
  "title": "FRM252WJR300TK",
  "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": [
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  "component": {
    "mpn": "FRM252WJR300TK",
    "manufacturer": "FOJAN",
    "package": "2512",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors / Shunt Resistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763504992097984512",
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      "lbr": "frm252wjr300tk.lbr"
    },
    "distributor_links": {
      "lcsc": "C7420025"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T14:33:09Z",
      "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 end electrode of the 2512 alloy current-sense resistor (300mΩ part, Sn-plated terminal); rated 2 W at 70°C, 63 A rated current for the 2512 type."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second end electrode of the 2512 alloy current-sense resistor; Kelvin four-terminal sensing points (V and A) are on the bottom of each electrode, 5.6±0.25 mm apart (dimension A)."
      }
    ],
    "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 has no pin-number table. It shows a two-terminal chip resistor. The numbers 1 and 2 ar; The 300mΩ value (R300) is outside the 2512 resistance ranges listed (0.5~4 mΩ for the standard type,",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 12,
        "cost_usd": 0.175,
        "at": "2026-10-19T14:30:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763504992097984512",
        "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"
    },
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        "file": "frm252wjr300tk.step",
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        "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": "76b2052a3c120193de7cdc0af99157b6f375e9a4af7721e3e3d012968c877f27",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "frm252wjr300tk-etched.step",
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        "seat": "z = 0",
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FOJAN",
      "Package": "2512",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
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      "rows": [
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          "name": "Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "nominal, catalog attribute (LCSC C7420025)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "catalog attribute (LCSC C7420025)",
          "source_page": null,
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        },
        {
          "name": "Rated power",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "catalog attribute (LCSC C7420025)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Temperature coefficient",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "catalog description (LCSC C7420025)",
          "source_page": null,
          "source": "catalog"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
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  "discovery_triggers": [
    "frm252wjr300tk"
  ],
  "discovery_pitch": "FRM252WJR300TK (FOJAN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "visibility": {
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}