The ER5025S-331 from Gowanda Electronics is a RF Inductor with Inductance 3.3 uH, DC Resistance 0.35 Ohms, DC Current 0.6 A, Self Resonant Frequency 72 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-331 can be seen below.