1 µH, 3.8 A — the power-path inductor for POL regulators
The DFE322512F-1R0M=P2 is a 1 µH shielded wirewound inductor from Murata's DFE322512F series, built with a metal composite core that handles 3.8 A continuous and saturates at 4.8 A — the 1 A headroom between rated and Isat gives the designer margin for transient loads without the inductance collapsing into a short-circuit condition.
Shielded metal-composite construction
The drum-core wirewound construction with full magnetic shielding means the inductor's field is contained — adjacent traces carrying 1 MHz switching edges see minimal coupled noise, which simplifies the layout of a point-of-load regulator where the inductor sits between the switch node and the output capacitor. The metal composite core material does not exhibit the same permeability roll-off with DC bias as ferrite; the inductance holds flat to within a few percent up to the saturation current, so the output ripple current stays predictable across the load range. The ±20% tolerance is the standard bin for power-grade shielded inductors — the actual inductance at 1 MHz test frequency will fall between 0.8 µH and 1.2 µH, and the closed-loop feedback in a switching regulator compensates for that spread as long as the inductor does not saturate under the peak current.
Surface-mount footprint and tape-and-reel supply
Supplied in tape-and-reel packaging (Cut Tape and Tape & Reel options), the inductor is compatible with high-speed pick-and-place assembly; the reel quantity is the standard 3000 pieces for the 1210 body size.
Active lifecycle — no design-in deadline
The base product number DFE322512F covers the full inductance family; the suffix =P2 denotes the specific 1.0 µH ±20% variant with the metal composite core.