3.3 µH, 800 mA rated — the power rail inductor for DC-DC converters
The LQH32PB3R3NNCL: With 3.3 µH ±30% inductance and an 800 mA continuous current rating (1.9 A saturation), this shielded ferrite-core inductor is sized for the output filter of a buck converter or the input stage of a low-power module where the load stays under 800 mA. The 120 mOhm max DCR means conduction loss stays under 77 mW at full rated current — negligible in most designs, but worth checking if the inductor sits in a high-ambient-temperature enclosure where self-heating adds to the thermal budget.
The shield construction and ferrite core material contain the magnetic flux, so this inductor can sit next to sensitive analog or RF circuitry without injecting ripple into adjacent traces. The 50 MHz self-resonant frequency gives usable inductance up to roughly 5–10 MHz switching frequency — well above the typical 500 kHz to 2 MHz range of most point-of-load converters, so the inductor behaves as an inductor across the operating band.
1210 footprint, 1.7 mm seated height — fits dense 4-layer boards
The 3.20 x 2.50 mm body (1210 metric case) and 1.70 mm max height let it fit under low-profile shrouds or on the back side of a PCB where vertical clearance is tight. Surface-mount on a nonstandard pad — the recommended land pattern is in the Murata application note; the 1210 footprint is common enough that most CAD libraries already have it.
Inductance drops with temperature in ferrite cores — the ±30% tolerance already accounts for the worst-case shift across temperature and bias current, so the filter corner frequency stays within the design window.