The AISM-1812-221K-T from Abracon LLC is a RF Inductor with Inductance 220 µH, DC Resistance 10 Ohms, DC Current 100 mA, Self Resonant Frequency 4 MHz, Operating Temperature -40 to 85 Degree C. Tags: Wire Wound Inductor, Chip Inductor, Molded Inductor. More details for AISM-1812-221K-T can be seen below.