Active production, 470 µH at 60 mA — the BOM-fit anchor
The Murata LQH32CN471K23L is an active-production drum-core wirewound inductor in the LQH32 series, rated 470 µH ±10% at 60 mA continuous current. The 60 mA rating is the DC current that raises the temperature by a specified rise — stay below it to keep the inductance from rolling off due to core saturation. With a 24.7 Ohm max DCR, the I²R loss at 60 mA is about 89 mW — negligible in most signal-filtering and low-power DC-DC output choke applications, but worth budgeting if the inductor sits in a high-density board where every milliwatt of self-heating matters.
5 MHz self-resonant frequency — where the part stops being an inductor
The self-resonant frequency of 5 MHz sets the upper bound for useful filtering. Above 5 MHz the parasitic capacitance across the winding dominates and the impedance starts dropping — so this part is a good fit for EMI filtering in the low-MHz range or as a storage inductor in a 100-500 kHz switching regulator, but not for a 10 MHz noise trap. The unshielded construction means the magnetic field extends beyond the component body. Keep a clearance of at least one part width (3.2 mm) from other inductors or sensitive traces to avoid coupling. The ferrite core material handles the 470 µH at 60 mA without saturating, but the unshielded flux path means the inductance drops less with DC bias than a shielded part of the same footprint would.
1210 footprint, 1.7 mm seated height — board-fit constraints
The nonstandard package designation means the terminations are on the long sides — verify the pad geometry against the manufacturer's recommended land pattern before committing the PCB layout. The inductance is tested at 1 kHz, so the 470 µH value is the low-frequency rating — expect the inductance to drop slightly at the operating frequency of a switching converter.
