The AISC-1210-3R9K-T from Abracon LLC is a RF Inductor with Inductance 3.9 µH, DC Resistance 3600 mOhms, DC Current 0.29 A, Self Resonant Frequency 60 MHz, Operating Temperature -40 to 125 Degree C. Tags: Wire Wound Inductor, Ceramic Inductor. More details for AISC-1210-3R9K-T can be seen below.