2.2 µH, 300 mA — AEC-Q200 shielded inductor for automotive and industrial DC-DC
The LQH2HNH2R2J03L is a Murata LQH2 series drum core wirewound inductor with a nominal inductance of 2.2 µH at 1 MHz test frequency, ±5% tolerance. It is rated for 300 mA continuous current and presents a maximum DC resistance of 300 mOhm. The inductor is shielded to contain magnetic flux, reducing crosstalk to adjacent traces and components — important in tightly packed automotive ECU layouts or power supply modules. This is the baseline for any under-hood or cabin electronics that must survive 15+ years of thermal and mechanical duty.
Package and footprint — 1008 (2520 metric), 1.0 mm seated height
The low profile suits designs where board-to-board clearance or enclosure thickness is constrained — common in ADAS cameras, key fobs, and portable instrumentation. The ferrite core material provides stable inductance over temperature and current, with a self-resonant frequency of 105 MHz — well above the typical switching frequency of a 2–4 MHz DC-DC converter, so the inductor behaves as a pure inductor in the passband. Operating temperature range spans -40°C to 125°C, covering the full automotive Grade 1 ambient. The 125°C upper limit includes self-heating margin; at 300 mA the DCR-induced temperature rise is modest, but derating above 85°C ambient should follow the manufacturer's curve.