Active production, 6.8 µH wirewound for DC-DC filtering
The Murata LQH32DN6R8M53L is an active-production drum-core wirewound inductor in the LQH32 series, rated 6.8 µH ±20% with a 540 mA continuous current rating and a matching 540 mA saturation current — the inductor saturates at the same current it thermally handles, so the usable range is the full rated current. The 325 mOhm max DCR sets the copper-loss floor: at 540 mA the I²R loss is about 95 mW, which is well within the package's dissipation capability for a 1210 footprint in still air.
Self-resonant frequency and temperature envelope
The 32 MHz self-resonant frequency means this inductor behaves as an inductor up to roughly 32 MHz — above that the parasitic capacitance dominates and the impedance turns capacitive. For a 1-10 MHz buck converter, the SRF gives enough headroom that the inductor's impedance stays inductive across the switching harmonics.
Unshielded construction and board-layout consideration
This is an unshielded inductor — the magnetic field couples into nearby traces and components. On a dense board, keep sensitive analog or RF traces at least one inductor width away, or budget a shielded alternative if cross-coupling shows up in the first prototype. Tape-and-reel packaging is available for automated pick-and-place.