The ECS-MPI4040R4-1R0-R from ECS Inc. International is a RF Inductor with Inductance 1 µH, DC Resistance 16 mOhms, DC Current 5.7 A (RMS), 8.2 A (Saturated), Self Resonant Frequency 20 kHz to 10 MHz, Operating Temperature -55 to 125 Degree C. Tags: Chip Inductor. More details for ECS-MPI4040R4-1R0-R can be seen below.