The 0402DC-39NX_R_ from Coilcraft is a RF Inductor with Inductance 0.039 uH, DC Resistance 0.375 Ohms, DC Current 0.35 to 0.67 A, Self Resonant Frequency 3.86 GHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0402DC-39NX_R_ can be seen below.