1 µH, 5.4 A — the saturation and DCR numbers that decide the fit
The DFE322520F-1R0M=P2 is a 1 µH shielded wirewound inductor from Murata's DFE322520F series, built on a metal composite core. The 5.4 A rated current is the thermal limit at the stated ambient; the 6.7 A saturation current is the point where inductance typically drops 30% — the real working current should stay below the lower of these two, and the 19 mOhm max DCR determines the I²R copper loss that heats the part.
Metal composite core and shielded construction
The metal composite core gives this inductor a soft saturation characteristic — inductance rolls off gradually rather than collapsing abruptly. That matters for DC-DC converters where the inductor sees a DC bias near the peak current: the loop remains stable even as inductance drops. The shielded construction contains the magnetic flux, reducing radiated EMI into nearby traces and components on a dense PCB. The 1210 (3225 Metric) footprint and 2.00 mm seated height fit low-profile designs like point-of-load regulators on server blades or automotive ECU boards.
Active production — sourcing and compliance
RoHS/RoHS compliance is typical for Murata's DFE series; specific certification documents are provided with the shipment upon request.