The ER5025S-623J from Gowanda Electronics is a RF Inductor with Inductance 620 uH, DC Resistance 11.8 Ohms, DC Current 0.038 to 0.105 A, Self Resonant Frequency 4.5 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-623J can be seen below.