Calculators / Info

Ohm's Law calculator

A simple little Ohm's Law calculator - input two of the known values (power, voltage, current, resistance) and get the last two calculated. Might be handy for quick calculations - has been for me, anyway.

Wire Gauge Calculator

Wire Gauge Calculator converts between trace geometry (width and thickness) and equivalent AWG wire gauge. It also calculates trace resistance at a given length and temperature, and voltage drop across the trace for a given current. It is an update to the previous version, written in and offers better OS compatibility.

OPAMP Selector Guide

Selguide is a software tool designed to guide the user in selecting our Operational Amplifier, Buffer and Comparator products by enabling the user to enter in a few key parameters and have a list of devices meeting those parameters returned to them. Included in the results is a summary table of key device parameters and pricing information, as well as a link back to view our Web site product folders for the chosen devices (You must have a Web browser and a live Internet connection to view the web pages). Installation of the Selguide software is simple and painless. Selguide does not add to or modify your system files at all and is completely self contained within one folder. Selguide fits nicely in a corner of your Desktop or Laptop PC for easy future reference.

ESP Transistor Data 1.1

This is a small program to find transistor data. Not everything is listed (1442 different devices). Download a copy, place it into the directory of choice and run the program, which is a self extracting archive. There are two extracted files - ESP-TRAN.EXE and BIPOLAR.TXT, being the executable and database respectively. ESP-SEMI.EXE may be deleted after extraction unless you want to give a copy to someone else. New stuff can be added as you find the data. If you add a lot of stuff, feel free to e-mail me a copy of the new database (compressed, please!), and I will add it to the database file.


In this IC-Databook Software you will find pin assignments, connection layouts, function tables and the most important specifications available for the 40x.. and the 74x.. IC series. The current software version includes the data of more than 230 different IC's. You can easily add additional IC's or edit existing IC's and exchange them with other users.

By continuing to use the site, you agree to the use of cookies. more info

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.