fiXtress Pro

The new industry standard for component derating and MTBF calculation

Based on over 30 years of experience, BQR defined the optimal process for conducting effective component derating and MTBF predictions.

Component derating is an important part of the design verification where overstressed components can be found and replaced.

During component derating the component types and stresses (Power, Voltage, Current etc.,) have to be defined. This information can then be used for MTBF prediction with a click of a button.



  • CAD Plug-In for quick BOM export and stress assignment on the schematic
  • Component derating guidelines editor
  • Part number library for maximal data reuse
  • Back annotation – present analysis results on the schematic

Analysis Flow

The following diagram presents the analysis flow, starting with BOM export and stress assignment, up to derating analysis and MTBF calculation.

Green blocks denote steps which are done using BQR’s CAD Plug-In.

Blue blocks denote steps which are done using BQR’s desktop software.

Click the image to enlarge.

fiXtress Pro - process flow
  • For more information on BQR’s ECAD plug-ins click here.
  • For more information regarding component derating click here.
  • For more information regarding MTBF Calculation click here.


See what our customers say about our software: