The ER17S302JR from Gowanda Electronics is a RF Inductor with Inductance 30 uH, DC Resistance 1.37 Ohms, DC Current 240 mA, Self Resonant Frequency 34 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S302JR can be seen below.