The ER5025S-103 from Gowanda Electronics is a RF Inductor with Inductance 100 uH, DC Resistance 3.12 Ohms, DC Current 0.113 to 0.2 A, Self Resonant Frequency 10 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-103 can be seen below.