Drum-core wirewound for general-purpose filtering
The Murata LQH32MN100J23L is a 10 µH unshielded wirewound inductor built on a ferrite drum core, housed in a 1210 (3225 metric) surface-mount package. Its 190 mA current rating and 1.8 Ohm maximum DCR set the DC loss budget — at full rated current the I²R drop is about 65 mW, which stays within the 85°C ambient ceiling without forced airflow.
Self-resonant frequency and usable bandwidth
With a self-resonant frequency of 20 MHz, this inductor behaves as an inductor up to roughly that point; above SRF the impedance turns capacitive and the part loses its filtering effectiveness. The Q factor of 35 at 1 MHz tells you the ratio of reactance to AC resistance at the test frequency — useful for tuned circuits or LC filters where insertion loss matters.
