Parametric fit — inductance, current, and frequency limits
The LQH2MCN330K02L: The 33 µH inductance at 1 MHz test frequency, combined with a 28 MHz self-resonant frequency, means this inductor behaves as an inductor up to about 28 MHz — above that the parasitic capacitance dominates and the impedance drops. For a buck converter switching at 500 kHz, the 33 µH value provides ripple current filtering well within the inductive region. The 160 mA current rating is the DC current at which the inductance typically drops by 10% due to core saturation — a designer should derate this for ambient temperature and ripple current to stay within the linear inductance region. The 3.64 Ohm max DCR contributes I²R losses: at 160 mA the copper loss is about 93 mW, which the 0806 body dissipates without significant self-heating in still air. The unshielded construction means the external magnetic field couples into nearby traces — keep sensitive analog or RF circuits at least a few mm away, or use a shielded inductor if EMI coupling is a concern.
Sourcing and compliance
The 0806 footprint is a standard JEDEC size, so no special stencil or placement nozzle is required.