The 0603HP-18NX_R_ from Coilcraft is a RF Inductor with Inductance 18 nH, DC Resistance 0.066 Ohms, DC Current 1.2 A(1200 mA), Self Resonant Frequency 3.3 GHz, Operating Temperature -40 to 125 Degree C. Tags: Ceramic Inductor, Chip Inductor. More details for 0603HP-18NX_R_ can be seen below.