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Murata Electronics LQH32CN3R3M53L — Inductors & Chokes

Murata LQH32CN3R3M53L Drum Core Inductor, 3.3 µH, 710 mA

MPNLQH32CN3R3M53L
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Murata Electronics LQH32 series, Drum Core Wirewound Inductor, LQH32CN3R3M53L, 3.3 µH, ±20%, 710 mA, 156 mOhm DCR, 1210 (3225 Metric) package, Unshielded.

$0.3000Ref. price · indicative, final on quote
Murata Electronics LQH32CN3R3M53L datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LQH32CN3R3M53L specifications
ParameterValue
TypeDrum Core, Wirewound
SeriesLQH32
MountingSurface Mount
Current rating710 mA
Frequency - self resonant50MHz
Inductance frequency - test1 MHz
Operating temperature-40°C ~ 85°C
Material - coreFerrite
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.067\" (1.70mm)
PackageTape & Reel (TR) Cut Tape (CT)
ShieldingUnshielded
Tolerance±20%
Inductance3.3 µH
CaseNonstandard
DC resistance156mOhm Max

Product details

3.3 µH, 710 mA — DC bias and DCR check

The LQH32CN3R3M53L is a drum-core wirewound inductor from Murata's LQH32 series, rated 3.3 µH ±20% at 1 MHz test frequency. DC resistance is 156 mOhm max, which at 710 mA gives a self-heating I²R loss of about 79 mW — negligible in free air but relevant in a dense 1210 array where adjacent components share the thermal budget. The unshielded construction means the flux couples into nearby traces; keep sensitive analog or RF routing at least one part width away.

1210 footprint, 1.7 mm seated height

The ferrite core and wirewound construction mean the part is not self-shielding — the unshielded flux can couple into a ground plane underneath, so a solid copper pour under the inductor is fine, but avoid routing a sensitive signal trace directly below it on an inner layer. Surface-mount on Tape & Reel (TR) or Cut Tape (CT) — the reel quantity is not specified here, but the 1210 footprint is standard for pick-and-place.

Frequently asked questions

What is the self-resonant frequency of LQH32CN3R3M53L?

The self-resonant frequency is 50 MHz. Above this frequency the inductor behaves capacitively — for a DC-DC converter switching at 2 MHz, the SRF is well above the switching harmonic content, so the part stays inductive across the fundamental and first few harmonics.