The ER5025S-104 from Gowanda Electronics is a RF Inductor with Inductance 1000 uH, DC Resistance 17.5 Ohms, DC Current 0.029 to 0.085 A, Self Resonant Frequency 3.8 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-104 can be seen below.