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Custom Fixture Designer Demonstration Guide

Step by step guide of Web Fixture Designer for 6 pin 0.1" pitch Pulse Transformer

Step1 - Example - 6 pin 0.1Inch

This page will describe the steps needed to design a fixture for this simple 6 pin pulse transformer with a  a 0.1 " x 0.4 " footprint, using the online Custom Fixture Designer.

A full test description of the part is here

Simple 6 pin
Simple 6 pin

Step 2 - Dimensional drawings and pin configurations

First refer to your datasheet, or manual measurements to find the separations of the pin contacts you need for your design.

In this case, we find
Row pitch = 0.4 inches
Pin pitch = 0.1 inches

Dimensional drawings and pin configurations
Dimensional drawings and pin configurations

Step 3 - Find the Greatest Common Divisor

The designer works by giving you a grid on which to place your chosen connectors.
First, we must find the Greatest Common Divisor (Highest Common Factor) for your dimensions,  that is also one of our available grid sizes.
In some cases this may be obvious (eg 0.1" for all RM type transformers).
For more complicated cases, we have also provided an on-line tool for you to enter your dimensions, which will then advise the grid size to use.

For this example ;
We entered 0.1 inch and 0.4 inch.
The tool advises to use will use grid side of 0.1"
1 cells for the 0.1 inch dimension,
4 cells for the 0.4 inch dimension.

Find the Greatest Common Divisor (Highest Common Factor)
Find the Greatest Common Divisor (Highest Common Factor)

Step 4 - Grid Selection

Select the gid size we have found in the above.

Grid Selection
Grid Selection

Step 5 - Select Parts

Select a connector type from the drop down menu.
You can use several different types on one design, if you wish.

Click the button "Explore parts for more details" to see information on the available types.


Select Parts
Select Parts

Step 6 - Place Connectors onto Grid

Click on the grid to place the connector.
You can click placed connectors again to remove them..

The grey square areas show restricted areas where additional parts cannot be placed.

Here we have placed

a) 6 small kelvin blades (100-161B) with
4 cells separation (0.4") in the X direction and
1 cells separation (0.1") in the Y direction.

b) 4 x 3mm holes  (100-164A) for mounting our own a toggle clamp later

c) 2x 10mm holes (100-164E)for adding our own test sockets later

d) a 10mm raised area (100-165A) as a locating guide.
When finished then click NEXT.

Put Parts into Grid
Put Parts into Grid

Step 7 - Select Wiring to AT Nodes

Next you need to connect your connectors to your chosen AT test nodes.

You can either
a, click and hold on the connector, and drag and drop these manually onto each node
b, use the Auto wiring button to instantly connect them to the nearest node

Finally enter your deign name and click finish.


Step 8 - Finished design and costing

A summary of your design. a unique design ID and  and costings will now be shown for your design.

This can be recalled later at any time.

If you would like email confirmation of this costing as a formal quote, then please click "email me a formal quotation"


Place order or email a formal quotation
Place order or email a formal quotation

Step 9 - Build and print custom fixture

This design was then manufactured and is shown to the right.

The 4 x 3mm holes were used to mount a toggle clamp as shown.

The 2 x 10m holes were used to add 2 x 4mm safety sockets for optional DC1000 connections for DC Bias testing if needed.

Finished fixture
Finished fixture
finished fixture
finished fixture
Detail of clamp engaged to hold UUT in place.
Detail of clamp engaged to hold UUT in place.
Detail of 6 Kelvin blades and locating block.
Detail of 6 Kelvin blades and locating block.