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Murata Electronics LQH31HNR21K03L — Inductors & Chokes

Murata LQH31HNR21K03L Drum Core Inductor, 215 nH, 520 mA

MPNLQH31HNR21K03L
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Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 215 nH, ±10%, 520 mA, 143 mOhm DCR, 1206 (3216 Metric), Unshielded, Ferrite Core.

$0.3757Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LQH31HNR21K03L specifications
ParameterValue
TypeDrum Core, Wirewound
SeriesLQH31
MountingSurface Mount
Current rating520 mA
Frequency - self resonant430MHz
Inductance frequency - test1 MHz
Operating temperature-40°C~85°C
Material - coreFerrite
Size (Dimension)0.126\" L x 0.063\" W (3.20mm x 1.60mm)
Height - seated0.079\" (2.00mm)
PackageTape & Reel (TR); Cut Tape (CT)
Q @ freq60 @ 100MHz
ShieldingUnshielded
Tolerance±10%
Inductance215 nH
Case1206 (3216 Metric)
DC resistance143mOhm Max

Product details

215 nH wirewound for RF and decoupling

The Murata LQH31HNR21K03L is a drum-core wirewound inductor in the LQH31 series, packing 215 nH ±10% into a standard 1206 footprint. It handles 520 mA continuous with a DCR of 143 mΩ max — the resistance is low enough that self-heating stays under control at rated current, so no derating for most board-level decoupling or RF bias-tee duty.

Unshielded, but the SRF is clean

Self-resonant frequency hits 430 MHz, well above the 100 MHz where Q is measured at 60 — this means the inductor behaves like an inductor up through VHF and into low UHF, making it a fit for RF matching networks and filter stages in that band. The unshielded construction means flux couples into nearby traces; keep a ground plane under the part and give it at least a part-width gap to adjacent inductors. The ferrite core material is standard for this inductance range — no saturation concerns at the 520 mA ceiling.

Frequently asked questions

What is the inductance and current rating of LQH31HNR21K03L?

Inductance is 215 nH ±10%, rated current is 520 mA, with a max DCR of 143 mΩ. Self-resonant frequency is 430 MHz.

What package does LQH31HNR21K03L come in?

Available in tape-and-reel or cut tape.