main
Ray Set visibility: public 76adb4f 15d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "jer1206f1r004",
  "title": "JER1206F1R004",
  "brief": "jieerrui Current Sense Resistors / Shunt Resistors, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "package": "1206",
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    "subcategory": "Current Sense Resistors / Shunt Resistors",
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      "lbr": "jer1206f1r004.lbr"
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    "distributor_links": {
      "lcsc": "C49164934"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T14:50:51Z",
      "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 4 mΩ (R004) 1% current-sense resistor, electrode width 0.50±0.20 mm, rated 1 W at up to 70 °C ambient and derated linearly above that to +170 °C."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second terminal electrode of the 4 mΩ (R004) 1% current-sense resistor, electrode width 0.50±0.20 mm, interchangeable with the first terminal, with TCR ±50 ppm/°C for 2 mΩ to 100 mΩ."
      }
    ],
    "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 package drawing (page 3) shows a two-terminal chip resistor with electrodes marked onl; The part number decode (1206, F = 1%, 1 = 1 W, R004 = 4 mΩ) follows the page 1 key. R004 is not in t",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 7,
        "cost_usd": 0.1384,
        "at": "2026-10-19T14:49:34"
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        "pages": 7,
        "sha256": "6c0d359d39546b43",
        "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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        "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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "zmin_mm": 0,
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "jieerrui",
      "Package": "1206",
      "Category": "Resistors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6c0d359d39546b438f6821b7c709fdc469aca08e893a298c0d29b08863684997",
      "rows": [
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          "name": "Resistance tolerance (F = 1%)",
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          "kind": "tolerance",
          "unit": "%",
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          "max": 1,
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          "source_page": 1,
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        },
        {
          "name": "Nominal resistance (decoded from R004 = 4 mΩ)",
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          "min": null,
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        {
          "name": "Maximum rated power (1206, 1W)",
          "symbol": "P",
          "kind": "electrical",
          "unit": "W",
          "min": null,
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          "max": 1,
          "conditions": "1206 type; derate above 70℃ ambient per curve",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of resistance (TCR)",
          "symbol": "TCR",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "1206, 1W, 2mΩ~100mΩ range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resistance range",
          "symbol": "R",
          "kind": "electrical",
          "unit": "mΩ",
          "min": 1,
          "typ": null,
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          "conditions": "1206, 1W",
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        {
          "name": "Insulation resistance",
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        {
          "name": "Operating temperature range",
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          "unit": "℃",
          "min": -55,
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          "max": 170,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Short time overload ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
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          "conditions": "5.0× rated power for 5 s",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature cycling ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "-55℃/+125℃, 1000 cycles",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High temperature exposure ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "125℃, 1000 h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low temperature operation ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "-55℃, 45 min",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Biased humidity ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "10% rated power, 85℃/85%RH, 1000 h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operational life ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "70±2℃, rated current 1.5 h on / 0.5 h off, 1000 h",
          "source_page": 7,
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        {
          "name": "Vibration ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
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          "conditions": "5g, 10-2000 Hz, 12 cycles, 20 min",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Resistance to solder heat ΔR",
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          "unit": "%",
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          "max": 1,
          "conditions": "260±5℃, 10±1 s",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Terminal bending ΔR",
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          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "2 mm deflection, 60 s",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Mechanical shock ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "100g, half sine, 6 ms",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Terminal strength ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "17.7 N, 60±1 s",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "-55/+125℃, 300 cycles",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "ESD ΔR",
          "symbol": "ΔR",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "2 kV, 2 times",
          "source_page": 7,
          "source": "datasheet"
        }
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  "discovery_pitch": "JER1206F1R004 (jieerrui) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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