22 µH shielded inductor for automotive power rails
The Murata LQH2MPZ220MGRL is a 22 µH drum-core wirewound inductor in the LQH2 series, built with a ferrite core and full magnetic shielding. The 290 mA continuous current rating and 2.52 Ohm max DC resistance define the conduction loss budget for a DC-DC converter or filter stage.
Saturation margin and self-resonant frequency
The saturation current (Isat) is 410 mA, which is 41% above the rated current of 290 mA. This headroom means the inductor can handle transient current spikes without a catastrophic drop in inductance — useful for the inrush on a motor driver or the peak current in a boost converter startup. Self-resonant frequency is 20 MHz. Above this frequency the inductor behaves capacitively, so for a switching regulator running at 2–4 MHz the part stays well below SRF and the impedance curve is inductive. The inductance is tested at 1 MHz, which is a common reference for power inductors in this value range.
0806 footprint and board integration
This is a low-profile shielded inductor that fits under a 1.0 mm clearance on the PCB — common in space-constrained automotive modules like keyless entry receivers or sensor nodes. Surface-mount assembly with tape-and-reel packaging supports standard pick-and-place. The shielded construction reduces radiated EMI into adjacent traces, which is important when the inductor sits near an RF front-end or a sensitive analog signal chain.