The 0603AF-271XJR_ from Coilcraft is a RF Inductor with Inductance 0.27 µH, DC Resistance 0.22 Ohms, DC Current 0.68 A(Irms), Self Resonant Frequency 750 MHz, Operating Temperature -40 to 85 Degree C. Tags: Chip Inductor, Wire Wound Inductor. More details for 0603AF-271XJR_ can be seen below.