The ER17S471JKR from Gowanda Electronics is a RF Inductor with Inductance 4.7 uH, DC Resistance 0.55 Ohms, DC Current 380 mA, Self Resonant Frequency 70 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S471JKR can be seen below.