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BLM15EG221SZ1D

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Murata Electronics Ferrite Beads, 0402. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BLM15EG221SZ1D

Murata Electronics · Ferrite Beads · 0402

BLM15EG221SZ1D from Murata Electronics, in a 0402. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1 passive One terminal of the series ferrite bead (equivalent circuit is an inductor in series with a resistor); impedance 220 ohm ±25% at 100MHz, rated current 700mA at 85°C and 500mA at 125°C.
2 2 passive Other terminal of the series ferrite bead; DC resistance 0.28 ohm max initial (0.37 ohm max after testing), non-polarized so the terminals are interchangeable.

Key specifications

Parameter Value
Manufacturer Murata Electronics
Package 0402
Category Filters
Pins 2

Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Impedance Z 220 Ω at 100 MHz, catalog attribute (LCSC C710338) catalog
Tolerance -25 25 % catalog attribute (LCSC C710338) catalog
Rated current 700 mA catalog attribute (LCSC C710338) catalog
Operating temperature -55 125 °C catalog description (LCSC C710338) catalog

CAD (KiCad official)

  • Symbol: BLM15EG221SZ1D
  • Footprint: Inductor_SMD:L_0402_1005Metric
  • 3D model: 0402 (KiCad packages3D, STEP)
  • 3D model files: blm15eg221sz1d-etched.step / blm15eg221sz1d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); blm15eg221sz1d.step / blm15eg221sz1d.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Murata Electronics datasheet (9 pp, sha256 42c005e1bd881191, retrieved 2026-11-02, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF