1.5 µH, 1 A — what the ratings mean on a real board
The LBC3225T1R5MR: The 1.5 µH inductance at 100 kHz test frequency is typical for DC-DC converter output filters or input pi-filters in the 1–3 MHz switching range. The 1 A current rating is the DC bias current at which inductance typically drops 10% — stay below this to avoid saturation in a boost or buck converter. DCR of 60 mOhm means I²R loss at 1 A is 60 mW — negligible for most power rails, but if this inductor sits in a 5 V rail at 800 mA continuous, the 38 mW loss adds about 1°C self-heating in still air. Self-resonant frequency of 220 MHz is well above any switching noise in a typical power supply, so the inductor behaves as a pure inductance up to tens of MHz. The unshielded construction means the stray field can couple into nearby traces — keep sensitive analog or RF routing at least 2 mm away on the same layer.
1210 footprint — board-fit note
The standard 1210 land pattern applies — no thermal pad needed since the part is unshielded and the DC current is moderate.