82 µH wirewound in a 1210 footprint
The Murata LQH32MN820K23L is a drum-core wirewound inductor from the LQH32 series, rated 82 µH at 1 MHz with ±10% tolerance. The 70 mA current rating and 6.2 ohm max DCR define the usable load — at full rated current the DC loss alone is 0.43 V drop, so the part is best suited for low-current filtering or decoupling where the voltage drop across the inductor stays within the rail budget.
Unshielded construction and self-resonant ceiling
Unshielded design means the magnetic field is not contained — adjacent traces, ground planes, or sensitive analog circuits may pick up radiated noise. The self-resonant frequency of 8.5 MHz marks the point where the inductor transitions from inductive to capacitive behavior; above this frequency the part acts as a low-impedance path, not a choke. Q factor is 40 at 1 MHz, indicating moderate efficiency at the test frequency.
