82 µH wirewound for automotive and industrial filtering
The Murata LQH32NH820J23L is a drum core wirewound inductor in the LQH32 series, offering 82 µH inductance with ±5% tolerance. Rated at 100 mA with a maximum DC resistance of 3.9 Ohm, it targets power-line filtering and decoupling in space-constrained automotive and industrial circuits.
Parametric fit — inductance, current, and self-resonant frequency
The 82 µH value at 1 MHz test frequency is paired with a self-resonant frequency of 11 MHz. Above that frequency the inductor behaves capacitively, so it is best used as a filter choke below 10 MHz where the impedance is still inductive. 100 mA continuous rating at 3.9 Ohm DCR means the I²R loss at full load is about 39 mW — negligible in most circuits, but the DCR does add a voltage drop in the supply rail that matters for low-voltage logic. The Q factor of 40 at 1 MHz indicates moderate energy storage efficiency at that frequency. The ferrite core material holds inductance reasonably flat across this band, though the DCR rises with temperature per the copper winding's positive coefficient.
Package and board-fit — 1210 footprint, unshielded
The unshielded construction means the magnetic field radiates — keep sensitive traces and other inductors at least one package width away to avoid coupling. Available on tape and reel or cut tape — standard for pick-and-place. The nonstandard case code just means it is a Murata-specific footprint; the 1210 land pattern is common across suppliers.