I'm not sure what an inductor is, and what it does. I copied part of a schematic (http://www.sparkfun.com/datasheets/Prototyping/LiPower-v11.pdf) to go into a development board that I have. The part number of the inductor is CDRH3D28, and I can't find the component on Digikey. The value that I'm suppose to find is 4.7uH, 1.2A. The products that I find are 4.7uH, 1.68A, and 10uH, 1.18A. Any help on which part I should get (or a different part on Mouser)?