15 µH wirewound for power-line filtering
The Murata LQH32CN150K53L is a 15 µH drum core wirewound inductor in the LQH32 series, built on a ferrite core and rated for 300 mA continuous current. The 754 mOhm max DCR tells you the DC power loss at full load — about 68 mW, which is manageable in most low-power rails but worth checking if your circuit runs near the current limit continuously.
Fit and frequency limits
The 26 MHz self-resonant frequency means this inductor stays inductive well into the low-MHz switching range — fine for a 500 kHz to 2 MHz buck converter, but above 10 MHz the parasitic capacitance starts to dominate and the effective inductance drops. The 1 MHz test frequency is the standard for measuring 15 µH parts; it confirms the inductance value at a typical operating point for power conversion. Unshielded construction means the magnetic field radiates — keep sensitive traces or other magnetics at least 5 mm away on the PCB, or the coupling can inject noise into adjacent circuits. The 1210 (3225 metric) footprint is standard and hand-solderable with a fine tip; orientation is marked by the white stripe on the top face.