100 µH in a 1206 drum-core body
The LQH31CN101K03L: It is rated for 80 mA continuous current with a maximum DC resistance of 15.6 Ohm — the DCR figure is the one that governs the resistive loss in the supply rail, so budget the I²R drop against the circuit's headroom. The ferrite core and unshielded construction mean the magnetic field extends beyond the component body — keep adjacent traces and other magnetics at least one package width away to avoid coupling.
Self-resonant frequency and temperature envelope
The self-resonant frequency is 7 MHz, tested at 1 MHz. Above that frequency the inductor behaves capacitively, so this part suits filtering and DC-DC conversion up to a few MHz where the impedance curve is still inductive. The ferrite core's permeability changes with temperature, but the inductance tolerance (±10%) covers the drift across this range.
Last-buy lifecycle — plan the BOM line
Murata has placed the LQH31CN101K03L in Last Buy status. That means the manufacturer has announced end-of-life; the remaining production window is finite. Once that window closes, the part moves to discontinued and only surplus inventory will be available. For a BOM that depends on this exact inductance and footprint, the prudent move is to secure the last-time-buy quantity now or qualify a drop-in alternative while the original is still orderable.