BLM21PG221SH1D

{
  "schema_version": 1,
  "type": "component",
  "slug": "blm21pg221sh1d",
  "title": "BLM21PG221SH1D",
  "brief": "Murata Electronics Ferrite Beads, 0805. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "filters",
    "blm21pg221sh1d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BLM21PG221SH1D",
    "manufacturer": "Murata Electronics",
    "package": "0805",
    "pin_count": 2,
    "category": "Filters",
    "subcategory": "Ferrite Beads",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588919993446903808",
    "parts": {
      "symbol": "blm21pg221sh1d.kicad_sym",
      "footprint": "blm21pg221sh1d.kicad_mod",
      "model_3d": "blm21pg221sh1d-hero.glb",
      "model_3d_plain": "blm21pg221sh1d-etched.glb",
      "model_3d_step": "blm21pg221sh1d-etched.step",
      "model_3d_step_plain": "blm21pg221sh1d.step",
      "lbr": "blm21pg221sh1d.lbr"
    },
    "distributor_links": {
      "lcsc": "C88994"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T10:37:37Z",
      "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 electrode of the two-terminal chip ferrite bead (series inductor plus resistance element); BLM21PG221 is 220 ohm ±25% at 100MHz, rated 2000mA (derated above 85°C to 1250mA at 125°C), DC resistance 0.045 ohm max initial."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second electrode of the two-terminal chip ferrite bead; the part is non-polarized and operates from -55°C to +125°C."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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 draws the part as a two-terminal chip with an equivalent circuit and electrodes, but i; The requested MPN BLM21PG221SH1D is not listed in this datasheet. The listed parts are BLM21PG221SN1",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2124,
        "at": "2026-10-19T10:35:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588919993446903808",
        "pages": 11,
        "sha256": "651645d072b5710a",
        "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": "blm21pg221sh1d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.25,
          1.25
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "751a8ae26d20698bfe8303aa2fc7ec986a8b9a7154699b94bf2a13d4ad401425",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "blm21pg221sh1d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.25,
          1.25
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1053dbb0a545f2bad919296b38634978b6626d4f8c345908a795b6161fb344bb",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Murata Electronics",
      "Package": "0805",
      "Category": "Filters",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "catalog",
      "datasheet_sha256": "651645d072b5710a8594bf47864946d4432144ef3c6437a404b0de3349ef308e",
      "rows": [
        {
          "name": "Impedance",
          "symbol": "Z",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "at 100 MHz, catalog attribute (LCSC C88994)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "catalog attribute (LCSC C88994)",
          "source_page": null,
          "source": "catalog"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "catalog attribute (LCSC C88994)",
          "source_page": null,
          "source": "catalog"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "blm21pg221sh1d"
  ],
  "discovery_pitch": "BLM21PG221SH1D (Murata Electronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "blm21pg221sh1d.kicad_sym",
    "blm21pg221sh1d.kicad_mod",
    "blm21pg221sh1d.glb",
    "blm21pg221sh1d.step",
    "blm21pg221sh1d.lbr",
    "docs/hero.png",
    "docs/blm21pg221sh1d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "blm21pg221sh1d-hero.glb",
    "blm21pg221sh1d-hero.overlay.json",
    "blm21pg221sh1d-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}