47 µH at 240 mA — the DC bias ceiling
The LQH3NPZ470MJRL is a 47 µH shielded wirewound inductor from Murata's LQH3 series, rated for 240 mA continuous DC current. The 1 Ohm max DCR means the I²R loss at full rated current is about 58 mW — negligible for most power rail filters but worth checking if the inductor sits in a high-ambient enclosure where every milliwatt of self-heating eats into the temperature margin. Saturation current is specified at 360 mA, a 50% headroom above the rated current — the core does not start rolling off inductance until well past the continuous operating point. That margin is typical for ferrite-core drum inductors in DC-DC converter output stages where transient current spikes can hit double the steady-state load.
AEC-Q200 — the automotive qualifier
The 1212 (3030 Metric) footprint is a common size for automotive DC-DC converter input/output filters and EMI suppression in body-control modules and infotainment power supplies. The ferrite core material keeps the self-resonant frequency at 10 MHz, so the inductor behaves as an inductor up through the switching frequencies of most automotive buck converters (2-4 MHz typical).
Active production — no end-of-life watch needed
For a BOM that already qualified this footprint and inductance value, there is no immediate pressure to find a drop-in replacement or stockpile for a last-time-buy.