33 µH wirewound in a 1206 footprint
The LQH31MN330K03L is a 33 µH wirewound inductor from Murata's LQH31 series, in a standard 1206 (3216 metric) surface-mount package.
Unshielded construction and self-resonant frequency
Unshielded construction means the magnetic field radiates beyond the component body — keep sensitive traces or other magnetics at least one part-width away to avoid coupling. Self-resonant frequency is 12 MHz; above that the inductor behaves capacitively. The Q factor is 40 at 2.5 MHz, indicating moderate efficiency in the low-MHz range.
Last Buy — plan the BOM window
Murata has marked the LQH31MN330K03L as Last Buy — the manufacturer is no longer accepting volume orders beyond a defined window. For new designs, consider a shielded alternative in the same 1206 footprint to avoid the unshielded radiation and secure a longer lifecycle.