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BLM03PX121SN1D

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Murata Electronics Ferrite Beads, 0201. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BLM03PX121SN1D

Murata Electronics · Ferrite Beads · 0201

BLM03PX121SN1D from Murata Electronics, in a 0201. 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 electrode of the two-terminal ferrite bead (120Ω ±25% at 100MHz, rated current 900mA at 85°C, 700mA at 125°C, DC resistance 0.160Ω max initial); the bead is non-polarized, so terminals are interchangeable.
2 2 passive Other electrode of the two-terminal ferrite bead (120Ω ±25% at 100MHz, rated current 900mA at 85°C, 700mA at 125°C, DC resistance 0.160Ω max initial); the bead is non-polarized, so terminals are interchangeable.

Key specifications

Parameter Value
Manufacturer Murata Electronics
Package 0201
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 120 Ω at 100 MHz, catalog attribute (LCSC C525479) catalog
Tolerance -25 25 % catalog attribute (LCSC C525479) catalog
Rated current 700 mA catalog attribute (LCSC C525479) catalog
Operating temperature -55 125 °C catalog description (LCSC C525479) catalog

CAD (KiCad official)

  • Symbol: BLM03PX121SN1D
  • Footprint: Inductor_SMD:L_0201_0603Metric
  • 3D model: 0201 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Murata Electronics datasheet (9 pp, sha256 809503121f0c117c, retrieved 2026-10-19, 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