The ER18M220JKMR from Gowanda Electronics is a RF Inductor with Inductance 0.22 uH, DC Resistance 0.035 Ohms, DC Current 2700 mA, Self Resonant Frequency 415 MHz, Operating Temperature -55 to 125 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER18M220JKMR can be seen below.