main
Ray Set visibility: public ab85e0b
{
  "schema_version": 1,
  "type": "component",
  "slug": "hollr1206-1w-27mr-1",
  "title": "HoLLR1206-1W-27mR-1%",
  "brief": "Milliohm Current Sense Resistors / Shunt Resistors, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "resistors",
    "hollr1206-1w-27mr-1%",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HoLLR1206-1W-27mR-1%",
    "manufacturer": "Milliohm",
    "package": "1206",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Current Sense Resistors / Shunt Resistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910274033426432",
    "parts": {
      "symbol": "hollr1206-1w-27mr-1.kicad_sym",
      "footprint": "hollr1206-1w-27mr-1.kicad_mod",
      "model_3d": "hollr1206-1w-27mr-1-hero.glb",
      "model_3d_plain": "hollr1206-1w-27mr-1-etched.glb",
      "model_3d_step": "hollr1206-1w-27mr-1-etched.step",
      "model_3d_step_plain": "hollr1206-1w-27mr-1.step",
      "lbr": "hollr1206-1w-27mr-1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2988658"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T02:24:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "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": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "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"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0013,
        "at": "2026-10-17T02:22:04"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910274033426432",
        "pages": 7,
        "sha256": "881128cf8909c33d",
        "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": "hollr1206-1w-27mr-1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          1.6,
          0.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f5d1ea5c47935091292bd1c6c698e0df88d3d4bbf92bf66b4c97e49df5be9ebc",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hollr1206-1w-27mr-1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.2,
          1.6,
          0.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5f74b0b28e3a7418ae93c560de26b32557bfc1099c6caa2b4c8ad70e961169b2",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Milliohm",
      "Package": "1206",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "881128cf8909c33d11715b355a9aa41b6854a24ca42aebc614b1f4219d827ce8",
      "rows": [
        {
          "name": "Tolerance (MPN code F = ±1%)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Tolerance code F = ±1% from part-numbering table; MPN ...-1%",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance (1mΩ–35mΩ range)",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "1mΩ–35mΩ range (27mΩ falls here); TCR=(R2−R1)/(R1×(T2−T1))×10^6, R1 at room temp, R2 at 125 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated power",
          "symbol": "P",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "HoLLR1206 1W variant; power must be derated above 70 °C per derating curve",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 170,
          "conditions": "使用温度范围 as printed (-55~+170)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resistance range",
          "symbol": "R",
          "kind": "electrical",
          "unit": "mΩ",
          "min": 1,
          "typ": null,
          "max": 100,
          "conditions": "Product family HoLLR1206 1/2W-1W, 1mΩ–100mΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short time overload resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Overload 5 s at 2× rated power (1W X2), rest 24 h before measurement",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Temperature cycling resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "-55°C to +125°C, 1000 cycles, rest 1 h",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Biased humidity resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "85°C, 85%RH, rated current 90 min ON / 30 min OFF, 1000 h",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low temperature exposure resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "-55±2 °C storage, 1000 h",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High temperature exposure resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "170 °C storage, 1000 h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load life resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "70±2 °C, rated current 90 min ON / 30 min OFF, 1000 h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistance to solder heat resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Dip in 260±5 °C solder 10±1 s",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistance to solvent resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Isopropyl alcohol 20–25 °C, 60±5 s, rest 24 h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Joint strength of solder resistance change",
          "symbol": "ΔR/R",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Bend test board, load applied at board center",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "R_ins",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "100 VDC applied for 1 min, electrode to protective coat and to substrate",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Solderability (electrode area wetted by new solder)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 95,
          "typ": null,
          "max": null,
          "conditions": "Dip in 245±5 °C for 3±1 s; electrode coverage must exceed 95%",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "hollr1206-1w-27mr-1%"
  ],
  "discovery_pitch": "HoLLR1206-1W-27mR-1% (Milliohm) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hollr1206-1w-27mr-1.kicad_sym",
    "hollr1206-1w-27mr-1.kicad_mod",
    "hollr1206-1w-27mr-1.glb",
    "hollr1206-1w-27mr-1.step",
    "hollr1206-1w-27mr-1.lbr",
    "docs/hero.png",
    "docs/hollr1206-1w-27mr-1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hollr1206-1w-27mr-1-hero.glb",
    "hollr1206-1w-27mr-1-hero.overlay.json",
    "hollr1206-1w-27mr-1-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}