56 µH shielded drum core — what the ratings mean for the BOM
The LPS5015-563MRC: Rated current is 400 mA, and the saturation current (Isat) is also 400 mA — meaning the inductor can carry its full rated current before the inductance drops by 10% typical, so no derating headroom is needed between the DC bias and the saturation limit.
DC resistance and temperature range
Maximum DCR is 1.13 Ohm, which at 400 mA DC produces about 180 mW of I²R loss — well within the power dissipation of the 5 mm × 5 mm footprint for most PCB copper pours.
Self-resonant frequency and test conditions
Self-resonant frequency is 17 MHz, which sets the upper useful frequency limit — above this the inductor behaves capacitively. Inductance is tested at 100 kHz, a standard reference point for power and signal filtering applications.
Active production — sourcing posture
Coilcraft lists the LPS5015-563MRC as Active.