The ECS-MPI4040R3-4R7-R from ECS Inc. International is a RF Inductor with Inductance 4.7 µH, DC Resistance 68 mOhms, DC Current 2.3 A (RMS), 4.8 A (Saturated), Self Resonant Frequency 20 kHz to 10 MHz, Operating Temperature -55 to 125 Degree C. Tags: Chip Inductor. More details for ECS-MPI4040R3-4R7-R can be seen below.