The 4448-28L from API Delevan is a Power Inductor with Inductance 100 to 400 µH, Inductance Tolerance ±20 %, DCR 565 to 2260 milli-ohm, Saturation Current 360 to 720 mA, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for 4448-28L can be seen below.