The AISM-1812-3R9K-T from Abracon LLC is a RF Inductor with Inductance 3.9 µH, DC Resistance 900 mOhms, DC Current 330 mA, Self Resonant Frequency 40 MHz, Operating Temperature -40 to 85 Degree C. Tags: Wire Wound Inductor, Chip Inductor, Molded Inductor. More details for AISM-1812-3R9K-T can be seen below.