22 µH in an 0806 footprint — where the LQH2MPN220MGRL fits
This is a shielded drum-core wirewound inductor from Murata's LQH2 series, packing 22 µH ±20% into a 2.00 mm × 1.60 mm 0806 case. The ferrite core and full shield mean the field stays contained — adjacent traces on a dense board won't couple noise into the inductor, and the inductor won't radiate into a sensitive analog or RF section. Rated current is 290 mA, with a saturation current of 410 mA — the inductance holds flat up to the saturation knee, so a 250 mA DC-DC converter output won't see the value collapse under load. The 2.52 Ohm max DCR sets the copper loss: at 290 mA the I²R loss is about 212 mW, which the 0806 body can sink into the board copper without exceeding the 105°C operating ceiling. Self-resonant frequency is 20 MHz — above that the inductor behaves capacitively. For a 1 MHz switching regulator, the 22 µH value is well below SRF, so the impedance is inductive across the switching band and the ripple attenuation is predictable.
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For BOM planning, the 0806 footprint and ±20% tolerance are standard across the LQH2 family — if this value goes on allocation, a parametric search on 22 µH ±20% shielded wirewound in 0806 will turn up alternatives from other manufacturers, but the pin-to-pin replacement requires confirming the DCR and saturation current match the circuit's margin.