The 0402DC-3N9X_R_ from Coilcraft is a RF Inductor with Inductance 0.0039 uH, DC Resistance 0.046 Ohms, DC Current 1.05 to 2.05 A, Self Resonant Frequency 12.65 GHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0402DC-3N9X_R_ can be seen below.