AEC-Q200 qualified for automotive and industrial filtering
The Murata LQH43NH820J03L is a drum core wirewound inductor in the LQH43 series, rated 82 µH ±5% with a 165 mA current rating.
DCR and self-resonant frequency define the usable band
DC resistance is 2.04 Ohm max — at 165 mA the I²R loss is about 55 mW, which is within the 1812 package's thermal budget for a standard reflow profile. The self-resonant frequency is 7.5 MHz; above that the inductor behaves capacitively, so the effective filtering range stops well before that point.
