The BCR-531JL from Coilcraft is a RF Inductor with Inductance 0.53 µH, DC Resistance 0.15 Ohms, DC Current 1060 mA(Irms), Operating Temperature -40 to 85 Degree C, Storage Temperature -40 to 85 Degree C. Tags: Conical Inductor. More details for BCR-531JL can be seen below.