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Murata Electronics LQH43NN271K03L — Inductors & Chokes

Murata LQH43NN271K03L 270 µH Unshielded Inductor, 100 mA

MPNLQH43NN271K03L
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Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 270 µH, ±10%, 100 mA, 6.8 Ohm DCR, Unshielded, 1812 (4532 Metric) SMD.

$0.2818Ref. price · indicative, final on quote
Murata Electronics LQH43NN271K03L datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LQH43NN271K03L specifications
ParameterValue
TypeDrum Core, Wirewound
SeriesLQH43
MountingSurface Mount
Current rating100 mA
Frequency - self resonant4MHz
Inductance frequency - test1 MHz
Operating temperature-40°C ~ 105°C
Material - coreFerrite
Size (Dimension)0.177\" L x 0.126\" W (4.50mm x 3.20mm)
Height - seated0.110\" (2.80mm)
PackageTape & Reel (TR) Cut Tape (CT)
Q @ freq40 @ 796kHz
ShieldingUnshielded
Tolerance±10%
Inductance270 µH
Case1812 (4532 Metric)
DC resistance6.8Ohm Max

Product details

270 µH wirewound in a 1812 footprint

The Murata LQH43NN271K03L is a drum-core wirewound inductor in the LQH43 series, wound on a ferrite core and packaged in the 1812 (4532 Metric) surface-mount footprint.

Frequency limits and Q factor

The self-resonant frequency is 4 MHz; above this the inductor behaves capacitively, so the usable frequency band for filtering or energy storage stops well below that ceiling. Q factor measures 40 at 796 kHz — a moderate figure that reflects the core and winding losses in this unshielded construction, acceptable for general-purpose DC-DC input/output filtering and low-frequency noise suppression.

Frequently asked questions

What is the inductance and current rating of this inductor?

The LQH43NN271K03L is a 270 µH ±10% wirewound inductor rated for 100 mA continuous current with a 6.8 Ohm maximum DC resistance.