**Microstrip calculator || Stripline calculator || Differential pair calculator || Via current calculator || PCB trace current calculator || Planar inductor calculator || Padstack calculator || Crosstalk calculator || Ohm’s Law calculator || XC XL Reactance calculator || BGA Land calculator || Er Effective calculator || Wavelength calculator || PPM Calculator**

The Saturn PCB Toolkit is the best freeware 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.

## Program includes:

**PCB Via Current Calculator per IPC-2152**

Calculates the current a via needs to raise its temperature over ambient per IPC-2152.

Other via properties include:

Via capacitance

Via inductance

Via impedance

Via step response

Via DC resistance

Via impedance

Via resonant frequency

Via thermal resistance

Via voltage drop

Via power dissipation in dBm

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**PCB Trace Width Calculator & PCB Trace Resistance Calculator per IPC-2152**

Calculates the current a conductor needs to raise its temperature over ambient

per IPC-2152. Now also calculates DC resistance with temperature compensation.

Other conductor properties include:

Conductor skin depth

Conductor voltage drop

Conductor DC resistance

Conductor power dissipation

Conductor voltage drop

Skin depth

Skin depth percentage

**Bandwidth Calculator & Max PCB Trace Length Calculator**

Calculates the bandwidth of a digital signal and maximum trace length, using the IPC-2251 method or the

frequency domain method, for transmission line effects.

**Wavelength calculator**

Calculates the wavelength of a signal using Ereff.

**Differential Pair Impedance Calculator**

Calculates the differential pair impedance of a balanced line.

Edge coupled differential pair

Edge coupled internal symmetric differential pair

Edge coupled internal asymmetric differential pair

Edge coupled embedded differential pair

Broadside coupled shielded differential pair

Broadside coupled non-shielded differential pair

**PCB Padstack Calculator
**

Calculates the outer and inner layer diameters of a padstack given the drill size. BGA land calculator based on the IPC-7351A specification.

BGA Land calculator to determine optimal pad size based on ball diameter.

Conductor to Pad calculator to determine maximum conductor width and pad diameter.

Conductor to BGA land calculator to determine maximum trace width for BGA breakout.

Corner to corner calculator to determine the diagonal distance of a square / rectangular aperture.

**Mechanical Data**

Calculates wire diameter for a given AWG gauge.

Drill chart with imperial and metric diameters.

Imperial screw thread size chart.

**Minimum PCB Conductor Spacing Chart**

Calculates minimum conductor spacing’s using peak AC or DC voltage based on IPC-2221A data.

**PCB conductor Impedances**

Calculates impedance of a PCB Microstrip or PCB Stripline.

Microstrip

Embedded microstrip

Stripline symmetrical

Stripline asymmetrical

Dual stripline

Coplanar structure

**Units Conversion Data**

Converts C to F, F to C.

Converts mm to mils, mils to mm.

Gain in dB, Voltage gain.

Rectangular to Polar conversion

dBm Chart

SI Prefixes

Ohms Law

**Planar Inductor Calculator**

Calculates the inductance of a planar PCB inductor.

Square planar inductor.

Hexagonal planar inductor.

Octagonal planar inductor.

Circular planar inductor.

**Power Delivery System Impedance Calculator**

Calculates the target impedance of a PDN.

**Thermal Resistance Calculator**

Calculates the junction temperature of a device using thermal resistance.

**Embedded Resistor Calculator**

Calculates the resistance (Ohms) of an embedded resister based on given geometry.

**Crosstalk Calculator**

Calculates coupled voltage between two conductors based on rise time, voltage, length and spacing.

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

**Fusing Current**

Uses Onderdonk’s equation to determine the fuse current of a conductor.

**Effective Dielectric Constant Calculator**

Uses the E. Hammerstad and O. Jensen equation to determine effective dielectric constant of a microstrip.