PWM connectors

[billbo911]

Originally Posted by eugenebrooks

The three pin female housing is Digikey WM2801-ND.
The female connector that goes into this housing is Digikey WM2554-ND.
We don't use the male pins, but these are part number WM2515-ND.

Don't forget the proper crimper. We use Digiikey WM9997-ND,
this being the proper Molex crimper for these connectors. There is
a cheaper multi-purpose crimper, WM9999-ND, and we use this
crimper on other kinds of connectors, such as those for the backup
battery, but it is not well suited for the C-Grid connectors.

Just to help round things out here, the male pins will be needed if you are working with VEX and need to make up your own cables to attach sensors such as potentiometers or custom micro switches to the analog/digital inputs.

[Joe Johnson]

I have had good success using the "generic" Molex crimper rather than the specialized one for the C-grid terminals (though I often back up the crimp with a solder job if the wire is a 24 gauge).

I use Mouser as often as Digikey.

The do-all crimper from Molex is Mouser part number 538-63811-1000

The housings are part number 538-50-57-9003

There are many terminal styles -- there are 2 gold platings and 1 tin plating, there are 2 sizes for gauge of wire and in females there are "box" and "high force" version -- all these varieteis lead to 6 male types and 10 female types.

For me and mine, I use:

• tin plated
• 22-24 guage wire size
• high force female

For my choices I get the following:

The male terminals are part number 538-16-02-0114
The females terminals are part number 538-16-02-1114

Feel free to pick your own. Here is a link to the right page from the Mouser Catalog.

Joe J.

[Gary Dillard]

I'm drooling with all the good information everyone has posted here. You've saved me from pulling out what hair I have left trying to wade through my catalogs. Thanks - this will make my conversion from ME mentor to EE mentor much easier.

[Mark McLeod]

Originally Posted by Gary Dillard

This will make my conversion from ME mentor to EE mentor much easier.

I suggest leaving the hammer and drill behind

[EricS-Team180]

Originally Posted by Gary Dillard

I'm drooling with all the good information everyone has posted here.

...we're going to have to be SO careful with him, around the batteries this year

[Billfred]

I know this kinda diverges from the thread a bit, but what does everyone use for wire? (I looked at Jameco's site, and couldn't find anything that resembled the stuff we use.)

[BrianBSL]

We use this: http://www.jameco.com/webapp/wcs/sto...oductId=232995
for switches and other digital inputs requiring only 2 conductors.

And this:
http://www.jameco.com/webapp/wcs/sto...oductId=233023
for Pots and other stuff requiring 3 conductors.

You can get similar ribbon wire to the IFI stuff on ebay and at hobby shops, they often call it "servo wire", but its cost is far more than the belden stuff from Jameco. We haven't had any noise issues that would have justified going with a ribbon-style wire instead of the multiconductor cable.