3.3 µH shielded power inductor for DC-DC converter rails
The Murata DFE252012P-3R3M=P2 is a 3.3 µH shielded wirewound inductor in the DFE252012P series, built with a flat-wire winding and iron powder core to handle 1.7 A continuous current with a 2.3 A saturation floor.
Rated current and saturation margin
Rated current is 1.7 A at 1 MHz test frequency, while the saturation current (Isat) is 2.3 A — a 35 % headroom above the rated value, meaning the inductance holds up under transient loads that push beyond the steady-state draw. The ±20 % tolerance on the 3.3 µH value is standard for power-grade inductors; the actual inductance at rated current will be within this band, so the output filter corner frequency stays predictable.
Shielded construction and temperature range
Shielded magnetic construction contains the flux within the core, reducing radiated EMI into adjacent traces or sensitive analog circuits on the same board — a common concern in dense power layouts.