The ER5025S-821 from Gowanda Electronics is a RF Inductor with Inductance 8.2 uH, DC Resistance 1.32 Ohms, DC Current 0.31 A, Self Resonant Frequency 43 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-821 can be seen below.