1.05 A current rating in a 1812 body
The LQH43NH1R8J03L is a drum-core wirewound inductor from Murata's LQH43 series, rated for 1.8 µH inductance with ±5% tolerance. The ferrite core and unshielded construction keep the self-resonant frequency at 75 MHz, so it works for DC-DC converter switching frequencies up to a few megahertz before parasitic capacitance starts to roll off the impedance.
1812 footprint and board-fit
The surface-mount terminations are compatible with reflow soldering; the tape-and-reel packaging suits automated pick-and-place for volume assembly. Q factor is specified at 20 @ 1 MHz — a moderate value typical for ferrite-core wirewound inductors in this inductance range. The unshielded construction means the stray field may couple into adjacent traces or components; layout should keep sensitive signal routing clear of the inductor's magnetic axis.