The ER5025S-433J from Gowanda Electronics is a RF Inductor with Inductance 430 uH, DC Resistance 9.5 Ohms, DC Current 0.043 to 0.115 A, Self Resonant Frequency 5.7 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-433J can be seen below.