1 µH shielded power inductor for automotive and industrial DC-DC
The Murata LQH3NPZ1R0MMEL is a 1 µH ±20% shielded wirewound inductor in the LQH3 series, built on a ferrite drum core with a 1212 (3030 Metric) footprint. It carries a continuous current rating of 1.6 A and saturates at 2.35 A, with a maximum DC resistance of 30 mOhm. The 1.6 A rating is the thermal current limit at the rated ambient — the part can carry this continuously without exceeding the temperature rise budget. The 2.35 A saturation current is the point where inductance drops by 30%; for a buck converter running at 1 MHz, the peak inductor current during a load transient should stay below this to avoid a hard saturation that stresses the switch FET.
AEC-Q200 qualification and temperature envelope
Rated AEC-Q200, this inductor meets the automotive-grade passive component stress test qualification — temperature cycling, moisture resistance, mechanical shock, and vibration per the AEC-Q200 rev D test plan. The shielded construction contains the magnetic flux within the core — this matters when the inductor sits adjacent to a sensitive analog front-end or a wireless transceiver, because the stray field from an unshielded drum core couples into nearby traces and shifts the noise floor.
Board-fit and sourcing posture
The 3.00 mm x 3.00 mm footprint is common across the LQH3 series, so a single land pattern serves multiple inductance values for BOM consolidation. Tape-and-reel packaging supports automated pick-and-place at standard 8 mm carrier pitch.