This product is a common mode choke/filter signal line, with a current rating of 330mA. It is a 0805 size, RoHS compliant component, manufactured by Sunlord. It is designed to reduce electromagnetic interference or noise in electrical signals by limiting its common-mode signals and passing only the desired differential or normal mode signals without any interference. The SDCW2012C-2-900TF component number is a part number of Sunlord Electronics Co Ltd.