10 µH at 450 mA — the DC bias ceiling
The LQH32CN100K53L is a 10 µH unshielded wirewound inductor from Murata's LQH32 series, rated for 450 mA continuous current. That current rating is the DC bias limit where inductance starts to roll off — above it the ferrite core saturates and the effective inductance drops, so the 450 mA figure governs the actual DC load the inductor can carry in a buck converter or filter stage.
DCR and self-resonant frequency
390 mOhm max DCR sets the copper loss at full rated current — at 450 mA the I²R loss is about 79 mW, which is manageable for a 1210 body but worth checking against the thermal budget in a dense board. The 26 MHz self-resonant frequency (SRF) means the inductor behaves inductively up to roughly 26 MHz; above that parasitic capacitance dominates and the impedance turns capacitive. For a 1–10 MHz switching regulator the SRF gives plenty of headroom.
Footprint and temperature range
Ferrite core material gives stable inductance over temperature within this band.