The ER18M821JKR from Gowanda Electronics is a RF Inductor with Inductance 8.2 uH, DC Resistance 0.44 Ohms, DC Current 520 mA, Self Resonant Frequency 48 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER18M821JKR can be seen below.