The ER15M221JKR from Gowanda Electronics is a RF Inductor with Inductance 2.2 uH, DC Resistance 0.95 Ohms, DC Current 435 mA, Self Resonant Frequency 135 MHz, Operating Temperature -55 to 125 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER15M221JKR can be seen below.