The 0402DC-20NX_R_ from Coilcraft is a RF Inductor with Inductance 0.02 uH, DC Resistance 0.163 Ohms, DC Current 0.53 to 1 A, Self Resonant Frequency 5.11 GHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0402DC-20NX_R_ can be seen below.