The ER17S272JKR from Gowanda Electronics is a RF Inductor with Inductance 27 uH, DC Resistance 1.19 Ohms, DC Current 260 mA, Self Resonant Frequency 38 MHz, Operating Temperature -55 to 105 Degree C. Tags: Ceramic Inductor, Wire Wound Inductor. More details for ER17S272JKR can be seen below.