Component identity and key parametrics
The Murata LQH2HPN4R7MJRL is a shielded drum-core wirewound inductor from the LQH2 series, built on a ferrite core with ±20% tolerance on the 4.7 µH nominal inductance. Rated for 770 mA continuous current with a saturation current floor of 1.23 A — the saturation limit is nearly 60% above the thermal rating, so the part is core-limited in normal DC-DC operation, not DCR-limited.
Package and board-fit dimensions
The 204 mOhm max DCR at 770 mA means roughly 120 mW of I²R loss at full rated current — budget the copper pour on the PCB landing pads to keep the temperature rise below the 105°C operating ceiling.
Lifecycle status — Last Buy, source now or plan a substitute
The manufacturer has placed this part in Last Buy status — the production window is closing, and once Murata's final shipment clears distribution, the only channel will be surplus inventory held by independent distributors. No official successor or pin-compatible drop-in replacement is recorded on the LQH2HPN line. For a BOM line that must outlive the Last Buy, the replacement path is a parametric substitute in the same 1008 footprint with matching 4.7 µH ±20% and ≥770 mA current rating — a board spin may be needed if the new part's DCR or saturation current shifts the power-stage stability.