BLM21BD102SH1D

{
  "slug": "blm21bd102sh1d",
  "version": "0.1.0",
  "type": "component",
  "description": "Murata Electronics Ferrite Beads, 0805. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "filters",
    "blm21bd102sh1d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "blm21bd102sh1d.kicad_sym",
    "blm21bd102sh1d.kicad_mod",
    "blm21bd102sh1d.glb",
    "blm21bd102sh1d.step",
    "blm21bd102sh1d.lbr",
    "docs/hero.png",
    "docs/blm21bd102sh1d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "blm21bd102sh1d-hero.glb",
    "blm21bd102sh1d-hero.overlay.json",
    "blm21bd102sh1d-etched.glb"
  ],
  "component": {
    "mpn": "BLM21BD102SH1D",
    "manufacturer": "Murata Electronics",
    "package": "0805",
    "pin_count": 2,
    "category": "Filters",
    "subcategory": "Ferrite Beads",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934450717188096",
    "parts": {
      "symbol": "blm21bd102sh1d.kicad_sym",
      "footprint": "blm21bd102sh1d.kicad_mod",
      "model_3d": "blm21bd102sh1d-hero.glb",
      "model_3d_plain": "blm21bd102sh1d-etched.glb",
      "model_3d_step": "blm21bd102sh1d-etched.step",
      "model_3d_step_plain": "blm21bd102sh1d.step",
      "lbr": "blm21bd102sh1d.lbr"
    },
    "distributor_links": {
      "lcsc": "C437408",
      "digikey": "490-11041-2-ND",
      "mouser": "81-BLM21BD102SH1D"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T04:14:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "490-11041-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "81-BLM21BD102SH1D",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "One electrode of the two-terminal ferrite bead, 1000Ω ±25% impedance at 100MHz, rated 250mA with 0.4Ω max DC resistance at 85°C (0.5Ω at 125°C)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Other electrode of the two-terminal ferrite bead, interchangeable with the first; the equivalent circuit is a series inductor and resistor between the two terminals, with resistance dominant at high frequencies."
      }
    ],
    "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 shows a two-terminal chip with unnumbered electrodes (equivalent circuit on page 3). P",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.2353,
        "at": "2026-11-07T04:14:23"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934450717188096",
        "pages": 12,
        "sha256": "4001d89ba5c558f1",
        "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": "blm21bd102sh1d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.25,
          1.25
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "751a8ae26d20698bfe8303aa2fc7ec986a8b9a7154699b94bf2a13d4ad401425",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "blm21bd102sh1d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.25,
          1.25
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "727ac5b37e470a2fc37d0b6b493288462d5b7511f7d08b7fae06da2ba36c2dcd",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}