What the 470 µH rating means for your filter or DC-DC stage
The Coilcraft LPS5015-474MRC is a shielded drum core inductor with 470 µH ±20% inductance, tested at 100 kHz. In a buck converter or EMI filter, that inductance value sets the ripple current and the corner frequency — a 470 µH choke at a 100 kHz switching node gives you a low ripple ratio for moderate load currents, but the 160 mA continuous rating and 120 mA saturation current mean this part is sized for signal-chain or auxiliary rail filtering, not a high-current power stage.
Shielded construction and the rework bench
The shield is a ferrite drum core wrapped in a magnetic shield — it contains the flux within the package, so you can place it next to a sensitive ADC or PLL without coupling noise into the signal path. Pin 1 is marked by the chamfer on the package body — look for the bevel before you reflow.
DC resistance and the thermal budget
For a 125°C ambient application, derate the current to keep the core temperature below the ferrite Curie point. The self-resonant frequency of 4.9 MHz tells you the inductor looks inductive up to about 1-2 MHz; above that, parasitic capacitance dominates and the impedance drops.
