Current rating and DC resistance — the power rail fit
The DFE201610P-R24M=P2 is a shielded drum-core wirewound inductor from Murata's DFE201610P series, rated for 5.4 A continuous current with a maximum DC resistance of 26 mOhm.
Inductance and frequency — what 240 nH buys you
240 nH at 1 MHz test frequency, ±20% tolerance. For a buck converter switching at 1–2 MHz, this inductance value delivers ripple current around 30–40% of the load current — a typical design target for balancing core loss and transient response. The iron powder core material handles DC bias without saturating hard; the inductance roll-off at rated current is moderate, not catastrophic.
Shielding and package — board-level integration
In a dense DC-DC layout, that means the inductor can sit next to a sensitive analog trace or another inductor without cross-coupling that shifts the effective inductance. The surface-mount 0806 package is a standard pick-and-place size — no special nozzle or vision tweaks needed.