The TT561-8I-10 from Piconics is a RF Inductor with Inductance 0.4 to 0.56 uH, DC Resistance 1.1 Ohms, DC Current 0.1 A, Self Resonant Frequency 250 MHz, Operating Temperature -55 to 125 Degree C. Tags: Thin Film Inductor. More details for TT561-8I-10 can be seen below.