The ER5025S-680 from Gowanda Electronics is a RF Inductor with Inductance 0.68 uH, DC Resistance 0.45 Ohms, DC Current 0.53 A, Self Resonant Frequency 190 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-680 can be seen below.