The 0603HP-4N3X_R_ from Coilcraft is a RF Inductor with Inductance 4.3 nH, DC Resistance 0.08 Ohms, DC Current 1.3 A(1300 mA), Self Resonant Frequency 7.5 GHz, Operating Temperature -40 to 125 Degree C. Tags: Ceramic Inductor, Chip Inductor. More details for 0603HP-4N3X_R_ can be seen below.