Parametric profile and selection fit
The Murata LQH43NN221K03L is a drum-core wirewound inductor in the LQH43 series, offering 220 µH inductance with ±10 % tolerance in an unshielded 1812 (4532 Metric) SMD package. The ferrite core and wirewound construction deliver a Q factor of 40 at 796 kHz and a self-resonant frequency of 4.5 MHz, which sets the usable band for the inductor — above that frequency the component behaves capacitively.
Package and sourcing posture
The base product number LQH43NN allows cross-referencing within the same family for alternate inductance values or tolerances when the BOM requires a variant.