The ER17S472JKR from Gowanda Electronics is a RF Inductor with Inductance 47 uH, DC Resistance 2.11 Ohms, DC Current 195 mA, Self Resonant Frequency 27 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S472JKR can be seen below.