DC bias and current derating
The LQH32CH4R7M23L: Rated 450 mA continuous with a DCR of 200 mOhm max. The self-resonant frequency is 43 MHz, so this part is useful for filtering in the low-MHz range — above that the impedance turns capacitive. The ferrite core saturates gradually; expect inductance to drop ~10-20% at rated current, typical for an unshielded drum core.
