The AISM-1812-681K-T from Abracon LLC is a RF Inductor with Inductance 680 µH, DC Resistance 30 Ohms, DC Current 50 mA, Self Resonant Frequency 3 MHz, Operating Temperature -40 to 85 Degree C. Tags: Wire Wound Inductor, Chip Inductor, Molded Inductor. More details for AISM-1812-681K-T can be seen below.