Compact models are mathematical descriptions (equations) of semiconductor devices used in analog circuit simulators. NXP has a simulator-independent compact transistor model library, called SiMKit. Here you can find the latest model information and downloads including full documentation as well as the complete SiMKit source code.


What's New in 4.8.1

Version 4.8.1 of the SiMKit library is now available. On this website, previous versions can be found as well. The main developments of this release are:

  • Updated to Mextram 504.12
  • Updated to PSP103.4 including some small bug fixes
  • Corrected a PSP103 issue found in SiMKit 4.8
  • The (frozen) mextram 3500 model was removed

Read more about SiMKit 4.8.1