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Contents

README

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BLM15BD121SZ1D

Murata Electronics · Ferrite Beads · 0402

BLM15BD121SZ1D 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 Terminal 1 of an unpolarised inductor or ferrite bead; either orientation.
2 2 passive Terminal 2 of an unpolarised inductor or ferrite bead; either orientation.

Key specifications

Parameter Value
Manufacturer Murata Electronics
Package 0402
Category Filters
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Impedance tolerance at 100 MHz -25 25 % Impedance 120±25% at 100 MHz (part-number table) 2
DC resistance, initial values 0.3 Ω Initial values, max 2
DC resistance, values after testing 0.4 Ω Values after testing, max 2
Impedance at 100 MHz (typical nominal) 120 Ω at 100 MHz 2
Operating temperature range -55 125 °C 1
Storage temperature range -55 125 °C 1
Impedance change at 100 MHz after AEC-Q200 tests -30 30 % Table A, after AEC-Q200 stress tests (e.g., high temperature exposure 1000 h at 125°C) 4
Impedance change at 100 MHz after ESD test -40 40 % Table B, BLM15BB/BD series, after ESD per AEC-Q200-002 5

CAD (KiCad official)

  • Symbol: BLM15BD121SZ1D
  • Footprint: Inductor_SMD:L_0402_1005Metric
  • 3D model: 0402 (KiCad packages3D, STEP)
  • 3D model files: blm15bd121sz1d-etched.step / blm15bd121sz1d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); blm15bd121sz1d.step / blm15bd121sz1d.glb are the bare package body.

Provenance

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

  • Datasheet: Murata Electronics datasheet (11 pp, sha256 2bf6dac775a7741c, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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