Inductor identity and key parametrics
The Murata LQH43NH5R6J03L is a drum-core wirewound inductor from the LQH43 series, offering 5.6 µH inductance with ±5% tolerance in a surface-mount 1812 (4532 Metric) package. The ferrite core and unshielded construction yield a self-resonant frequency of 33 MHz and a Q factor of 25 at 1 MHz — parameters that matter for filter and impedance-matching circuits where the inductor must maintain its inductive behavior well above the switching frequency.
Operating envelope and package
Inductance is tested at 1 MHz per the datasheet — the 33 MHz SRF means the inductor remains useful for DC-DC converters switching in the 1-10 MHz range where the impedance stays predominantly inductive.
Sourcing and lifecycle posture
The LQH43NH series is a mature Murata portfolio; no pin-compatible direct replacement is necessary while the part remains in active status. For new designs, the AEC-Q200 qualification and 1812 footprint make it a drop-in choice for automotive power-train or body-electronics inductors.