68 µH, 470 mA — where the saturation headroom lives
The LQH3NPZ680MMEL: Rated at 470 mA continuous with a saturation current floor of 310 mA (Isat), this 68 µH wirewound gives you about 50% headroom above the saturation knee before the inductance collapses. That margin matters when the DC-DC converter sees a transient load step — the inductor stays in its linear region and the output ripple doesn't spike. The 1.38 Ohm max DCR translates to roughly 0.3 W of copper loss at rated current, which the 1212 (3030 Metric) package dissipates without exceeding the 105°C upper operating limit.
Shielded ferrite core — keeps the field off nearby traces
The shielded construction and ferrite core contain the magnetic flux path, which is the main reason you reach for this part over an unshielded drum core on a dense board. On a layout with the inductor sitting next to a sensitive analog trace or a high-impedance feedback node, the shielding reduces coupled noise. The 3.00 mm × 3.00 mm footprint with a 1.50 mm seated height fits into the profile of a low-profile power stage.
Temperature range — industrial, not automotive
It does not carry AEC-Q200 qualification, so for under-hood or engine-bay designs you would need the automotive-grade Murata LQH3 series variant. The self-resonant frequency of 5 MHz means the inductor behaves as an inductor up to roughly that point — above it, parasitic capacitance takes over and the impedance rolls off.
