The AIAC-4125C-R222J-T from Abracon LLC is a RF Inductor with Inductance 0.222 µH, DC Resistance 0.014 Ohms, DC Current 3 A, Self Resonant Frequency 600 MHz, Operating Temperature -40 to 125 Degree C. Tags: Air Core Inductor. More details for AIAC-4125C-R222J-T can be seen below.