330 nH shielded power inductor for DC-DC rail filtering
The Murata DFE252012P-R33M=P2 is a shielded wirewound drum-core inductor in the DFE252012P series, built for point-of-load filtering and DC-DC converter output stages where low DCR and high saturation current matter. Rated 4.6 A continuous with a saturation current floor of 6.6 A, this 330 nH part carries enough margin for a 3 A rail without the core hitting hard saturation during load transients — the 23 mOhm max DCR keeps copper losses under 0.5 W at full rated current.
Saturation margin and thermal budget for the BOM
The 6.6 A Isat spec is measured at the inductance drop point — typically a 30% roll-off from the nominal 330 nH. Below that current the inductance holds flat, so the inductor behaves linearly in a buck converter's CCM region. Shielding is full magnetic — the ferrite and iron-powder wrap contain the fringe field, so this inductor can sit next to a sensitive ADC or RF front-end without injecting noise into the ground plane.
Active production and supply posture
Tape-and-reel packaging (cut tape available) means it ships ready for pick-and-place. The 1008 footprint is a standard size, so second-source equivalents from other manufacturers exist, but no pin-compatible direct replacement is recorded from Murata.