The 0402DC-18NX_R_ from Coilcraft is a RF Inductor with Inductance 0.018 uH, DC Resistance 0.138 Ohms, DC Current 0.58 to 1.1 A, Self Resonant Frequency 5.59 GHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0402DC-18NX_R_ can be seen below.