The 0603AF-601XJR_ from Coilcraft is a RF Inductor with Inductance 0.601 µH, DC Resistance 0.55 Ohms, DC Current 0.51 A(Irms), Self Resonant Frequency 540 MHz, Operating Temperature -40 to 85 Degree C. Tags: Chip Inductor, Wire Wound Inductor. More details for 0603AF-601XJR_ can be seen below.