The ER5025S-123 from Gowanda Electronics is a RF Inductor with Inductance 120 uH, DC Resistance 3.6 Ohms, DC Current 0.098 to 0.185 A, Self Resonant Frequency 9.7 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-123 can be seen below.