The ER15M431JR from Gowanda Electronics is a RF Inductor with Inductance 4.3 uH, DC Resistance 2.6 Ohms, DC Current 260 mA, Self Resonant Frequency 90 MHz, Operating Temperature -55 to 125 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER15M431JR can be seen below.