10 µH shielded wirewound in a 1210 footprint
The DFE322512F-100M=P2 is a 10 µH drum-core wirewound inductor from Murata's DFE322512F series, shielded to contain the field and rated for 1.1 A continuous current. Saturation current is 1.7 A, meaning the inductance holds within ±20% up to that point — a useful margin for transient peaks in a buck regulator output.
Metal-core construction and temperature range
The metal composite core gives a flat inductance vs. DC bias curve compared to ferrite — the 10 µH value stays stable under load, which simplifies loop compensation in a DC-DC converter. Inductance is tested at 1 MHz — the standard frequency for this value range — and the ±20% tolerance is typical for power inductors where the exact value is less critical than the saturation and DCR.