SQL 2016 MS runtime download and install

Does anyone have any information on where i can download MS SQL 2016 run-time version (the version where we don't need an activation key..) - this version is part of the ISV program through SAGE as we have SQL CAL licenses through SAGE.. Any advice on this would be appreciated as we do not want to install SQL standard (buy activation key) or SQL Express (limited to 10GB database).. thank you