The ER15M331JKR from Gowanda Electronics is a RF Inductor with Inductance 3.3 uH, DC Resistance 2 Ohms, DC Current 300 mA, Self Resonant Frequency 110 MHz, Operating Temperature -55 to 125 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER15M331JKR can be seen below.