Software/Calculator


Useful software, applets, mobile apps, and calculators.

Mismatch Error Limits Calculator

Author: 

Rex Frobenius
Mismatch uncertainty is the result of reflections adding and subtracting from each other when more than one interface is present. To use the calculator below, input a values into the fields and hit the enter key. The result will appear below. You can choose different input formats from the drop down menu.

eCalc Scientific Calculator

Author: 

eCalc/EEWeb

eCalc was formerly its own product/website but more recently has been incorporated into the EEWeb collection of engineering tools. It is a streamlined multi-function calculator, with unit conversion and several built-in scientific constants, that can be customized to suit the users preferences (including RPN operation!). The free online version runs without any special plug-ins required. Downloadable versions can be purchased for Windows and Mac OS (free trial available).

PCB Design Toolkit

Author: 

Saturn PCB Design, Inc.

Software for Windows PC's with multiple calculators for PC board parameters.

The Saturn PCB Toolkit is the best resource for PCB related calculations you can find.
It incorporates many features that PCB designers and engineers are in regular need of like current capacity of a PCB trace, via current, differential pairs and much more. Please download our PCB Toolkit today for free and enjoy!

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