The ER17S393JKR from Gowanda Electronics is a RF Inductor with Inductance 390 uH, DC Resistance 7.4 Ohms, DC Current 105 mA, Self Resonant Frequency 6.2 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S393JKR can be seen below.