You can create a custom Proteus component and attach a SPICE .lib or .mod file to it. A heavily referenced Russian electronics repository by Valvolodin hosts a library pack containing the SPICE model for the 3524; you can find it directly in this Archived Edaboard Thread .
If you have a professional version of Proteus, you can search for "SG3524" directly via the Library Pick Form to import it from over 15 million online parts. 🛠️ How to Install the Library sg3524 proteus library download link
Before diving into the SG3524 library, let's briefly introduce Proteus. Proteus is a powerful software suite for electronic design automation (EDA) that offers a wide range of tools for schematic capture, simulation, and PCB design. Its ability to simulate a wide variety of electronic components and models makes it a favorite among electronics engineers and hobbyists. You can create a custom Proteus component and attach a SPICE
Once you have downloaded the .LIB and .IDX files (or a .pdif file for manual importing), follow these steps to add it to your software: Method 1: Manual Copy-Paste 🛠️ How to Install the Library Before diving