The SRR4018-Series from Bourns is a Power Inductor with Inductance 1 to 180 µH, Inductance Tolerance ± 30 %, DCR 35 to 4000 milli-ohm, Saturation Current 250 to 2600 mA, SRF 10 to 219 MHz. Tags: Surface Mount. More details for SRR4018-Series can be seen below.