- Ultra Librarian TM provides a cloud-based library of over 7 million symbols, footprints, and 3D STEP models with vendor neutral ECAD data output options. This library represents over 400 manufacturers, provided by the industries' largest library of ECAD components. Easily find the parts you need and export to 22 different CAD tools. The library is updated daily to provide the most accurate parts for youe PCB design needs.