main
Ray Set visibility: public ee760b9 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lr122wf500mt4e",
  "title": "LR122WF500MT4E",
  "brief": "UNI ROYAL Uniroyal Elec 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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    "resistors",
    "lr122wf500mt4e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LR122WF500MT4E",
    "manufacturer": "UNI ROYAL Uniroyal Elec",
    "package": "2512",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors / Shunt Resistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590235441804324864",
    "parts": {
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      "footprint": "lr122wf500mt4e.kicad_mod",
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      "model_3d_plain": "lr122wf500mt4e-etched.glb",
      "model_3d_step": "lr122wf500mt4e-etched.step",
      "model_3d_step_plain": "lr122wf500mt4e.step",
      "lbr": "lr122wf500mt4e.lbr"
    },
    "distributor_links": {
      "lcsc": "C2941069"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T13:35:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Resistor terminal 1 (end electrode A/B, L=6.35±0.254 mm body); non-polarized and interchangeable with terminal 2, 2W rating at 70℃ with max rating current 44.72A and max overload current 100.00A for the 16~450 mΩ, ≤±50 ppm/℃ version."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Resistor terminal 2 (opposite end electrode); non-polarized and interchangeable with terminal 1, operating temperature -55~+170℃."
      }
    ],
    "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 is for a 2-terminal metal strip chip resistor and prints no pin numbers or names. The ; The MPN decodes as LR12, 2W, ±1%, 500M = 500×10^-4 Ω = 50 mΩ. The datasheet gives no package-name ma",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1085,
        "at": "2026-10-19T13:32:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590235441804324864",
        "pages": 8,
        "sha256": "9cafe18fe2eb29b6",
        "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": [
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        "file": "lr122wf500mt4e.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": "lr122wf500mt4e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "c59e199a564c8a46fdcca630b3750854c318f39324194a149d82554770305954",
        "checked": "2026-10-19",
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      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "UNI ROYAL Uniroyal Elec",
      "Package": "2512",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "catalog",
      "datasheet_sha256": "9cafe18fe2eb29b6daa501f3856dc4cffe7e28a483a1941f5137fd44659bbae0",
      "rows": [
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          "name": "Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "nominal, catalog attribute (LCSC C2941069)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "catalog attribute (LCSC C2941069)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Rated power",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "catalog attribute (LCSC C2941069)",
          "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 C2941069)",
          "source_page": null,
          "source": "catalog"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "lr122wf500mt4e"
  ],
  "discovery_pitch": "LR122WF500MT4E (UNI ROYAL Uniroyal Elec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "docs/lr122wf500mt4e-datasheet.pdf",
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    "lr122wf500mt4e-hero.overlay.json",
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  "visibility": {
    "public": true
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}