The Murata DFEG7030D-220M=P3 is a 22 µH shielded power inductor from the DFEG7030D series, built with an iron powder core and wound for surface-mount assembly. The 1.9 A continuous current rating and 2.7 A saturation current (Isat) define the usable load range — the inductor stays in its linear inductance region up to 2.7 A, but the DC resistance of 198 mOhm max sets the I²R heating that governs the continuous current limit.
NRND lifecycle — what it means for your BOM
That means the part is still available for existing production but is not intended for new design-ins.
Key ratings and what they drive in a power stage
The 22 µH inductance is tested at 100 kHz, which is the typical switching frequency for many automotive buck converters. Shielding means the magnetic field is largely contained within the ferrite shield — important when the inductor sits next to sensitive analog or RF circuitry on the same board. The iron powder core offers a softer saturation characteristic than ferrite, which can be an advantage in applications that see transient current spikes above the rated current. The nonstandard case means you need the manufacturer's recommended land pattern for solder joint reliability; the pad geometry is not a standard EIA size.