Drum core wirewound in a 1210 footprint
The LQH32DN2R2M23L is a Murata drum core wirewound inductor in the LQH32 series, built on a ferrite core and unshielded. The 2.2 µH inductance at 1 MHz test frequency with ±20% tolerance puts it in the general-purpose power and signal filtering range for surface-mount boards. Rated for 600 mA continuous current with a maximum DC resistance of 169 mOhm — the DCR figure sets the I²R heating at full load, so the temperature rise under 600 mA stays within the ferrite core's saturation margin. The 64 MHz self-resonant frequency means the inductor behaves inductively well above typical switching regulator frequencies, keeping the impedance curve flat where it matters.
Board-fit and temperature envelope
The unshielded construction means the magnetic field extends beyond the package — keep sensitive traces or other magnetics at least one package width away to avoid coupling. The ferrite core material holds inductance stable across this range, though the DCR drifts with temperature per copper's positive coefficient.
Sourcing and lifecycle status
Available in Tape & Reel (TR) and Cut Tape (CT) packaging options for both volume and prototype runs. The base product number LQH32DN covers the full inductance range in this footprint, so a BOM change to a different value in the same family keeps the same pad layout.