The SRR4028-Series from Bourns is a Power Inductor with Inductance 1.2 to 560 µH, Inductance Tolerance ± 30 %, DCR 20 to 3000 milli-ohm, Saturation Current 150 to 2560 mA, SRF 3 to 176 MHz. Tags: Surface Mount. More details for SRR4028-Series can be seen below.