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BLM31KN102SZ1L

Public Made by Adom

by adom

Murata Electronics Ferrite Beads, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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BLM31KN102SZ1L

Murata Electronics · Ferrite Beads · 1206

BLM31KN102SZ1L from Murata Electronics, in a 1206. 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 1206
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 100MHz) -25 25 % 1
DC resistance (initial values) 0.075 Ω Initial values; DC Resistance (Ω max.) 1
DC resistance (after testing) 0.09 Ω Values after testing; DC Resistance (Ω max.) 1
Rated current 2000 mA at 85°C (Note1) 1
Rated current 1400 mA at 125°C (Note1, derated) 1
Operating temperature -55 125 °C 1
Storage temperature -55 125 °C 1
Impedance change (Table A after testing) -50 50 % at 100MHz; after testing, Table A 2
Impedance change (Table B after testing) -30 30 % at 100MHz; after testing, Table B 3
Impedance 1000 Ω at 100MHz, under standard testing condition 1

CAD (KiCad official)

  • Symbol: BLM31KN102SZ1L
  • Footprint: Inductor_SMD:L_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: blm31kn102sz1l-etched.step / blm31kn102sz1l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); blm31kn102sz1l.step / blm31kn102sz1l.glb are the bare package body.

Provenance

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

  • Datasheet: Murata Electronics datasheet (9 pp, sha256 f47c8f2380bd025e, retrieved 2026-10-18, 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