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Ray Set visibility: public 89fac67 7d ago
{
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  "type": "component",
  "slug": "hoyh1206-1w-90mr-1",
  "title": "HoYH1206-1W-90mR-1%",
  "brief": "Milliohm Current Sense Resistors / Shunt Resistors, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
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    "manufacturer": "Milliohm",
    "package": "1206",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors / Shunt Resistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603039570665885696",
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    "distributor_links": {
      "lcsc": "C5127783"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T23:40:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "Terminal 1",
        "type": "passive",
        "description": "One of the two Sn/Ni/Cu terminal electrodes of the 1206 ceramic alloy resistor, rated 1W, 2mR~500mR, operating temperature -55℃~+155℃; recommended pad P 1.2 mm, W 1.84 mm, D 1.8 mm for 5mR~500mR."
      },
      {
        "number": "2",
        "name": "Terminal 2",
        "type": "passive",
        "description": "The other Sn/Ni/Cu terminal electrode of the non-polarized, non-inductive 1206 resistor, rated 1W with max rated current 1.41A~22.36A across the series."
      }
    ],
    "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": [
          "extractor flagged: The datasheet drawings (pages 2 and 3) show two terminal electrodes on a chip resistor but print no ; The datasheet's ordering example is 100mR (HoYH 1206 1W 100mR 1%). The requested 90mR value lies ins",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 5,
        "cost_usd": 0.1167,
        "at": "2026-10-21T23:39:55"
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        "pages": 5,
        "sha256": "e6740127f1967532",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "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": "f5d1ea5c47935091292bd1c6c698e0df88d3d4bbf92bf66b4c97e49df5be9ebc",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hoyh1206-1w-90mr-1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "7f3f480561495833a7be18a078f2991a80e51a7f2a35f6ed86350b65e3c9f70e",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Milliohm",
      "Package": "1206",
      "Category": "Resistors",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "4.4 两端电极 Terminal electrode(4) : 锡﹑镍﹑ 铜 Sn﹑Ni﹑Cu 4.5 保护防焊层 Protective coating(5) : 防火级环氧树脂,符合 UL- 94-V0要求(绿色)",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "e6740127f1967532aa3c11fdfcbf7cf016c67e65106df58cb784b41cb38125ec"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e6740127f1967532aa3c11fdfcbf7cf016c67e65106df58cb784b41cb38125ec",
      "rows": [
        {
          "name": "Resistance tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Suffix 1% in MPN; datasheet tolerance table for 10~500 mR: 0.5%/1%",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance (T.C.R)",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "Printed as '≤50、±100'; which value applies to 90 mR not stated",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance (T.C.R)",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Printed as '≤50、±100'; which value applies to 90 mR not stated",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 155,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rated power",
          "symbol": "P",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum reflow/soldering peak temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "Printed 260±5°C, max. 10 sec",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "hoyh1206-1w-90mr-1%"
  ],
  "discovery_pitch": "HoYH1206-1W-90mR-1% (Milliohm) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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