The ER18M510JR from Gowanda Electronics is a RF Inductor with Inductance 0.51 uH, DC Resistance 0.125 Ohms, DC Current 1450 mA, Self Resonant Frequency 270 MHz, Operating Temperature -55 to 125 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER18M510JR can be seen below.