Differential Pair Impedance Calculator
Calculates the differential pair impedance of a balanced line.

Via Current Calculator
Calculates the current a via needs to raise its temperature over ambient
per IPC formula.

Trace width Calculator & DC Resistance Calculator
Calculates the current a conductor needs to raise its temperature over ambient
per IPC formula. Now also calculates DC resistance with temperature compensation.

Simple Padstack Calculator
Calculates the outer and inner layer diameters of a padstack given the drill size.

Mechanical Data
Calculates wire diameter for a given AWG gauge.

Minimum Conductor Spacing Chart
Calculates minimum conductor spacing's using peak AC or DC voltage based on IPC data.

RF Impedances
Calculates impedance of a Microstrip and Stripline.

Revision History:

Version 3.9 Updated via graphics.
Version 3.8 Added BGA pads to padstack calculator, added metric drills to chart.
Version 3.7 Updated >500V Minimum Conductor Spacing calculation.
Version 3.6 Added Fusing Current capability to the Conductor program.
Version 3.5 Added Voltage Drop to the Conductor program.
Version 3.42 Removed floating Label20 and 21 from GUI.
Version 3.41 Minor changes.
Version 3.4 Added RF Impedances for Microstrip and Stripline.

Version 3.3 Fixed via inductance formula and step response formula. I apologize for the
                  inconvenience this may have caused.
Version 3.2 Fixed via impedance formula, was very inaccurate. I apologize for the
                  inconvenience this may have caused.
Version 3.11 Fixed Via program issue where the ref plane opening edit box was left
                   visible after selecting a 2 layer via.
Version 3.1 Fixed conductor cross section calculation error in Conductors program.
                  Error occurred when conductor width was less than conductor height.
Version 3.0 Added installer and registry keys to remember Units / Program settings.
Version 2.1 Fixed image positioning in via calculator.
Version 2.0 Added conductor spacing chart and improved program functionality.
Version 1.94 corrected typo in the Signals program.
Version 1.93 Fixed missing percentage display in differential pair calculator.
Version 1.92 corrected typo in the Signals program.
Version 1.91 added frequency domain option in the Signals program, fixed typo.
Version 1.9 added functionality to the via calculator inputs.
Version 1.8 corrected typo in the Signals program.
Version 1.7 contains added drill sizes to the padstack calculator.
Version 1.6 contains a bug fix in the differential pair calculator when using metric units.

Please check back often, this program is updated often per customer requests.

What would you like to see in this program? Tell us now!