560 nH drum core for DC-DC filtering
The Murata LQH31MNR56K03L is a drum core wirewound inductor from the LQH31 series, delivering 560 nH ±10% in a standard 1206 (3216 metric) footprint. Rated for 200 mA continuous current with a DC resistance of 610 mOhm, this part suits low-power DC-DC converter output filters and signal-line decoupling where board space is tight.
Self-resonant frequency and Q factor
A self-resonant frequency of 180 MHz and a Q factor of 30 at 25 MHz mean the inductor maintains its inductive behavior well above typical switching frequencies for small power supplies and RF bias circuits. The unshielded construction means the magnetic field extends beyond the package — keep sensitive traces or adjacent inductors at least one part-width away to avoid coupling.