The ER18M from Gowanda Electronics is a RF Inductor with Inductance 0.15 to 27 uH, DC Resistance 0.03 to 2.75 Ohms, DC Current 205 to 2900 mA, Self Resonant Frequency 22 to 510 MHz, Quality Factor 30 to 65. Tags: Wire Wound Inductor. More details for ER18M can be seen below.