The ER5025S-302J from Gowanda Electronics is a RF Inductor with Inductance 30 uH, DC Resistance 1.37 Ohms, DC Current 0.16 to 0.3 A, Self Resonant Frequency 29 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-302J can be seen below.