The ER17S202JR from Gowanda Electronics is a RF Inductor with Inductance 20 uH, DC Resistance 0.96 Ohms, DC Current 290 mA, Self Resonant Frequency 41 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S202JR can be seen below.