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Ray Set visibility: public 4d481a2 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "blm15ax121sn1d11",
  "title": "BLM15AX121SN1D11",
  "brief": "Murata Electronics Ferrite Beads, 0402. 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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    "extractor-text"
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    "manufacturer": "Murata Electronics",
    "package": "0402",
    "pin_count": 2,
    "category": "Filters",
    "subcategory": "Ferrite Beads",
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    "parts": {
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      "footprint": "blm15ax121sn1d11.kicad_mod",
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      "model_3d_plain": "blm15ax121sn1d11-etched.glb",
      "model_3d_step": "blm15ax121sn1d11-etched.step",
      "model_3d_step_plain": "blm15ax121sn1d11.step",
      "lbr": "blm15ax121sn1d11.lbr"
    },
    "distributor_links": {
      "lcsc": "C882961"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T21:02:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 802 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Terminal of the chip ferrite bead, 120 ohm ±25% at 100 MHz, rated current 700 mA at 85°C and 600 mA at 125°C. Electrodes are interchangeable, with no polarity."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second terminal of the chip ferrite bead, in series with terminal 1 (equivalent circuit is an inductor in series with a resistor), DC resistance 0.13 ohm max at 85°C and 0.18 ohm max at 125°C."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "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 draws the 0402 chip with two end electrodes and an equivalent circuit with two open te",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2287,
        "at": "2026-10-23T21:02:21"
      },
      "datasheet": {
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        "pages": 11,
        "sha256": "f97878af8b79f2dc",
        "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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      "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": "8bf2ae2bbd9d8b716db21d8d7fb903fac5ba2696150c3ec2e35bcea17b208ff2",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "sha256": "68db031d5dd231f00ff5f06f07b8271c2ee778c9e5d08ac2c1ddc380ea021581",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Murata Electronics",
      "Package": "0402",
      "Category": "Filters",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f97878af8b79f2dca4132863e73471edbb1be331de8b65df5e9ff5b71313c7d9",
      "rows": [
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          "name": "Impedance tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "At 100MHz; printed ±25% for BLM15AX121SN1D11",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Impedance change after tests",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "At 100MHz, after mechanical and environmental tests (Sec. 7-2, 7-3); the ±40% limit applies to BLM15PD only",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DC resistance, initial",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.13,
          "conditions": "Initial values column; digital multimeter, excluding substrate and wire resistance",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DC resistance, after testing",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.18,
          "conditions": "After Testing values column (heading as printed)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Impedance (nominal)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 120,
          "max": null,
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          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "Operating temperature",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "Storage temperature (printed under Rating)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reflow standard profile peak temperature tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "°C",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "Standard profile, peak 245°C ±3°C, 2 reflow cycles",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reflow limit profile peak temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Limit profile, 10 s, 2 reflow cycles",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Time above 220°C during reflow",
          "symbol": "",
          "kind": "timing",
          "unit": "s",
          "min": 30,
          "typ": null,
          "max": 60,
          "conditions": "Standard profile, heating above 220°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Limit profile time above 230°C during reflow",
          "symbol": "",
          "kind": "timing",
          "unit": "s",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Limit profile, heating above 230°C, 60 s max",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Pre-heating temperature difference",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Between solder and ferrite surface during pre-heating",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Cooling temperature difference after soldering",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Cooling into solvent after soldering",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Rework soldering iron tip temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "Soldering iron tip temperature, 3 s, 2 times max",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Cleaning temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Cleaning temperature limit; 40°C max for IPA",
          "source_page": 10,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "BLM15AX121SN1D11 (Murata Electronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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}