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Murata Electronics LQH43CN1R0M33L — Inductors & Chokes

Murata LQH43CN1R0M33L Inductor, 1 µH, 2.6 A, 1812

MPNLQH43CN1R0M33L
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Murata Electronics LQH43 series drum core wirewound inductor, LQH43CN1R0M33L, 1 µH ±20%, 2.6 A, 42 mOhm DCR, unshielded, 1812 (4532 Metric) surface mount.

$0.2212Ref. price · indicative, final on quote
Murata Electronics LQH43CN1R0M33L datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LQH43CN1R0M33L specifications
ParameterValue
TypeDrum Core, Wirewound
SeriesLQH43
MountingSurface Mount
Current rating2.6 A
Frequency - self resonant110MHz
Inductance frequency - test1 MHz
Operating temperature-40°C ~ 85°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)
ShieldingUnshielded
Tolerance±20%
Inductance1 µH
Case1812 (4532 Metric)
DC resistance42mOhm Max

Product details

Core parametrics for the power rail

The Murata LQH43CN1R0M33L is a drum core wirewound inductor from the LQH43 series, built on a ferrite core and left unshielded. In the 1812 (4532 Metric) surface-mount footprint, it delivers 1 µH ±20% inductance with a continuous current rating of 2.6 A. The self-resonant frequency sits at 110 MHz, well above the switching frequencies of typical DC-DC converters this part would see, so the inductance stays inductive through the regulator's loop.

The unshielded construction means magnetic flux couples into surrounding traces; keep sensitive routing at least one body width away on the same layer. Supplied on tape and reel, the part is compatible with standard pick-and-place.

It remains a current-production line item in the LQH43 series.

Frequently asked questions

What is the DC resistance and why does it matter?

DCR is 42 mOhm max. At the full 2.6 A rating, this produces about 284 mW of self-heating — well within the 85°C temperature ceiling, but the heat must be conducted through the solder pads, so the board copper area under the part influences the real thermal derating.