The AC2 Series from Vanguard Electronics is a RF Inductor with Inductance 0.0025 to 0.06 uH, DC Resistance 1.1 to 10 mOhms, DC Current 4 to 10 A, Self Resonant Frequency 1.2 to 12.5 GHz, Operating Temperature -55 to 125 Degree C. Tags: Air Core Inductor. More details for AC2 Series can be seen below.