What the 2.2 µH and 1.6 A ratings mean for your rail
The LQH32PH2R2NN0L is a shielded wirewound inductor with a nominal inductance of 2.2 µH at 1 MHz test frequency, rated for 1.6 A continuous current. The saturation current (Isat) is 1.55 A, so the core begins to lose inductance just above the rated current — keep the peak DC bias below 1.55 A to stay in the linear region. With a maximum DC resistance of 91.2 mOhm, the I²R loss at 1.6 A is about 233 mW — fine for a 1210 footprint but worth checking against the board's copper pour and airflow if the inductor sits near other heat sources. The self-resonant frequency is 70 MHz, meaning the inductor behaves inductively up to roughly that point. Above 70 MHz parasitic capacitance dominates, so this part suits DC-DC converter switching frequencies in the low-MHz range, not RF filtering above 70 MHz.
Automotive-grade construction and package fit
Rated AEC-Q200, this inductor meets the passive-component stress qualification for automotive electronics — temperature cycling, moisture resistance, and mechanical shock are tested per the standard. The shielded ferrite core construction contains the magnetic field, reducing EMI coupling to nearby traces — useful when the inductor sits close to a sensitive analog or RF section on the board. The ±30% tolerance is typical for power inductors; the actual inductance at the DC bias point will be lower than the nominal value, so design the compensation network around the minimum inductance.