Hi Leonardo,
NREL builds the SAM module library from data provided in the Excel workbook on the California Energy Commission (CEC) Solar Equipment List web page:
solarequipment.energy.ca.gov/Home/PVModuleList.
Modules that are in the CEC workbook but not in SAM's library either have parameters that caused SAM's coefficient generator to fail, or are modules that were added by the CEC after we built the SAM library.
You can use SAM to model modules that are not in the library as described in this post:
sam.nrel.gov/forum/forum-general/2768
Best regards,
Paul.