10 µH, 100 mA — parametric fit for signal and low-power filtering
The LQH31MN100K03L is a 10 µH wirewound inductor from Murata's LQH31 series, rated for 100 mA continuous current with a maximum DC resistance of 3.25 Ohm. This combination suits it for signal-line filtering, DC-DC converter output smoothing at low load, or decoupling in circuits where the current draw stays under the 100 mA ceiling.
Unshielded drum-core construction — layout considerations
Built on a ferrite core with an unshielded drum-core winding, this inductor does not contain a magnetic shield. The unshielded construction means the external magnetic field extends beyond the component body — adjacent traces or other magnetics on the board should be spaced to avoid coupling. The self-resonant frequency is 20 MHz, and the Q factor is 35 at 5 MHz, giving a usable range up to the low tens of MHz for tuned or filter applications.
Last Buy — final order window open
Murata has classified the LQH31MN100K03L as Last Buy. This is the final opportunity to secure stock before production ceases. For new designs or long-term BOM stability, evaluate a current-production 10 µH shielded or unshielded inductor in the same 1206 footprint as a replacement path.
1206 SMT — footprint and temperature envelope
Available on tape and reel for volume production.