The ER17S680JKR from Gowanda Electronics is a RF Inductor with Inductance 0.68 uH, DC Resistance 0.45 Ohms, DC Current 420 mA, Self Resonant Frequency 190 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S680JKR can be seen below.