33 µH at 115 mA — AEC-Q200 qualified for automotive power filtering
The Murata LQH32NZ330J23L is a 33 µH drum-core wirewound inductor in the LQH32 series, rated for 115 mA continuous current with a maximum DC resistance of 3.5 Ω. The 12 MHz self-resonant frequency places the usable inductance well above the switching frequencies of typical DC-DC converters (hundreds of kHz to a few MHz), so the inductor behaves as a pure inductive element in those bands. The Q factor of 40 at 1 MHz gives a reasonable AC loss figure for filtering applications.
AEC-Q200 and operating envelope
The unshielded construction means the magnetic field extends beyond the body — keep sensitive traces or ferrite beads at least one part-width away to avoid coupling.