The 4448-128L from API Delevan is a Power Inductor with Inductance 100 to 400 µH, Inductance Tolerance ±20 %, DCR 303 to 1212 milli-ohm, Saturation Current 460 to 920 mA, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for 4448-128L can be seen below.