The 0402DC-30NX_R_ from Coilcraft is a RF Inductor with Inductance 0.03 uH, DC Resistance 0.245 Ohms, DC Current 0.42 to 0.81 A, Self Resonant Frequency 4.15 GHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0402DC-30NX_R_ can be seen below.