Automotive-grade 680 nH shielded inductor for DC-DC input/output filtering
The Murata DFE201612PD-R68M=P2 is a shielded drum-core wirewound inductor in the DFE201612P series, rated 680 nH ±20% with a continuous current of 2.5 A and a saturation current of 3.1 A.
DC resistance and current handling for power rail design
Maximum DCR is 46 mOhm — at 2.5 A continuous the I²R loss is roughly 288 mW, which the 0806 metal-core construction dissipates without exceeding the 125 °C rated operating limit. The 3.1 A saturation current (Isat) is specified at the inductance drop point — the metal composite core provides a soft-saturation characteristic, so the inductance rolls off gradually rather than collapsing abruptly, which helps maintain loop stability in buck converters during transient loads. Shielded construction contains the magnetic flux within the core — this reduces radiated EMI into adjacent traces or components, a practical concern when the inductor sits near a sensitive analog front-end or RF section on the same PCB.