The SESI 15 12K 1SR from Exxelia Technologies is a Space Qualified Inductor with Inductance 12 µH(No Load), Inductance Tolerance ± 20%, DCR 23 mOhms, Saturation Current 4.0 A(Rated), Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for SESI 15 12K 1SR can be seen below.