main
Ray Set visibility: public 641111a 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "blm18kn101eh1d",
  "title": "BLM18KN101EH1D",
  "brief": "Murata Electronics Ferrite Beads, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "extractor-text"
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  "component": {
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    "manufacturer": "Murata Electronics",
    "package": "0603",
    "pin_count": 2,
    "category": "Filters",
    "subcategory": "Ferrite Beads",
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      "footprint": "blm18kn101eh1d.kicad_mod",
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      "model_3d_plain": "blm18kn101eh1d-etched.glb",
      "model_3d_step": "blm18kn101eh1d-etched.step",
      "model_3d_step_plain": "blm18kn101eh1d.step",
      "lbr": "blm18kn101eh1d.lbr"
    },
    "distributor_links": {
      "lcsc": "C3716723",
      "digikey": "490-BLM18KN101EH1DTR-ND",
      "mouser": "81-BLM18KN101EH1D"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T21:45:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "490-BLM18KN101EH1DTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "81-BLM18KN101EH1D",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One electrode of the two-terminal ferrite bead (about 100 ohm ±25% at 100MHz), rated 1900 mA at 125°C and 1200 mA at 150°C, with 0.030 ohm max initial DC resistance."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Other electrode of the two-terminal ferrite bead, which is electrically interchangeable with the first since the part is a non-polarized series element, with an operating temperature of -55°C to +175°C."
      }
    ],
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      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
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        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet shows only two electrodes (equivalent circuit and dimensions) and never prints pin num",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1689,
        "at": "2026-10-20T21:44:49"
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        "pages": 8,
        "sha256": "da010bd01d365ffc",
        "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
      }
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        "seat": "z = 0",
        "extents_mm": [
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          0.8,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b0136ad7160588d2f5dac8c85da84a35646db656b5bc54bbb873b6b548eedbb3",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "blm18kn101eh1d-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "b3d1facb0107160c7623d23bcc5394e6fda99b1bd2f692e8d19eb5b211d53f8f",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Murata Electronics",
      "Package": "0603",
      "Category": "Filters",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "da010bd01d365ffc1afe8162d14b857ed6192dcab5ce8def7bfeaeba792d720a",
      "rows": [
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          "name": "Impedance tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "Impedance at 100MHz, printed rating ±25%",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Resistance (initial values)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.03,
          "conditions": "Initial values, DC resistance max.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Resistance (after testing)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.04,
          "conditions": "After testing, DC resistance max.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated Current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1900,
          "conditions": "at 125°C, derated with operating temperature (note *1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated Current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1200,
          "conditions": "at 150°C, derated with operating temperature (note *1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated Current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "at 175°C, derated with operating temperature (note *1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 175,
          "conditions": "",
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        {
          "name": "Storage Temperature",
          "symbol": "",
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          "unit": "°C",
          "min": -55,
          "typ": null,
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          "conditions": "Storage temperature",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Warehouse storage temperature",
          "symbol": "",
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          "unit": "°C",
          "min": -10,
          "typ": null,
          "max": 40,
          "conditions": "Warehouse storage before use (section 10-11)",
          "source_page": 7,
          "source": "datasheet"
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          "name": "Warehouse storage humidity",
          "symbol": "",
          "kind": "recommended_operating",
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          "min": 15,
          "typ": null,
          "max": 85,
          "conditions": "Relative humidity, warehouse storage before use (section 10-11)",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Impedance change after mechanical shock",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "Table B, after mechanical shock (item 13)",
          "source_page": 2,
          "source": "datasheet"
        },
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          "name": "Impedance change (second Table B entry)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "Table B, after vibration or board flex (items 14, 21); test item not explicitly printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Impedance (nominal)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "at 100MHz, measured 100MHz±1MHz",
          "source_page": 1,
          "source": "datasheet"
        }
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  },
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  "discovery_triggers": [
    "blm18kn101eh1d"
  ],
  "discovery_pitch": "BLM18KN101EH1D (Murata Electronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}