The DR354-1-390-K from Datatronic Distribution Inc is a RF Inductor with Inductance 0.39 to 0.39 uH, DC Resistance 2.2 Ohms, DC Current 150 mA, Operating Temperature -40 to 130 Degree C, Tolerance ±10%. Tags: Wire Wound Inductor. More details for DR354-1-390-K can be seen below.