The ECS-HCMPI-0503Q from ECS Inc. International is a RF Inductor with Inductance 0.15 to 4.7 uH, DC Resistance 2.31 to 36.3 mOhms, DC Current 4.3 to 22.2 A, Operating Temperature -40 to 125 Degree C, Storage Temperature -40 to 125 Degree C. Tags: Ceramic Inductor. More details for ECS-HCMPI-0503Q can be seen below.