The ER5025S-181 from Gowanda Electronics is a RF Inductor with Inductance 1.8 uH, DC Resistance 0.14 Ohms, DC Current 0.95 A, Self Resonant Frequency 89 MHz, Operating Temperature -55 to 105 Degree C. Tags: Wire Wound Inductor. More details for ER5025S-181 can be seen below.