If you cannot find the component after installing, check these common errors:
This is the standard way to add new models. download sg3525 library for proteus
Instead of searching for a separate library, you can: If you cannot find the component after installing,
C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\Data\LIBRARY download sg3525 library for proteus
How to obtain and install an SG3525 model for Proteus (practical steps)