The ER10M121JKR from Gowanda Electronics is a RF Inductor with Inductance 1.2 uH, DC Resistance 0.18 Ohms, DC Current 590 mA, Self Resonant Frequency 150 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER10M121JKR can be seen below.