How to make footprint for a jack with rectangular tabs?

Don French wrote:

I am trying to create a footprint for this phono jack

http://www.switchcraft.com/Drawings/35rapc__hn2_cd.pdf. And instead

of pins that go through circular holes, it has tabs that go through

rectangular holes. How do I do this in the footprint editor?

 

Draw the rectangles or wires in the milling layer and ensure you include and

explain the presence of the routing layer to the board house

Verify the dimensions of your slots are greater than the minimums of the

board house.

Take guidance here from the board house you intend to use.

Also, the jack has five round pegs that appear to be for positioning.

Is there a way to indicate this on the footprint in such a way that

they will be drilled no matter where I place the jack (as opposed to

putting holes on the board that would have to be re-positioned if I

moved the jack)? I suppose that I could make them fake pads - so what

if they get plated through? - but is there another way?

Place "holes: when you design the package. They wont be plated through and

copper pours will keep away from them as determined by your DRC settings

You could use pads if you see some advantage or use a cheap board service

option that does not offer un-plated holes (Its an additonal later stage

they remove to keep the cost down)

Or maybe I

will just ignore the pegs and let the piece sit 1 mm above the board.

But I fear that the pegs are important for handling the stress of

plugging a phono plug in and out all the time.

 

Finally, how are these pieces soldered in? Do the tabs have to be

folded over before soldering? If so, this has impications for the

board design too - there has to be a pad on the back side but only on

one side of the hole.

Usually the tabs are given a twist to hold the part in place for manual or

wave soldering

Warren

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As an example have  a look within  the library con-shiua-chyuan

There is a single package there with milled slots through pads. That

technique may work for you if you do not need the slot to be plated

Warren

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Viewed / responded via the newsgroup at

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Hi

I usually cut of those positioning pegs with a craft knife...I suppose they must be essential in some industrial process...not my area I'm afraid...

Then all you have is the five rectangular pads. Which are meant to be through soldered...so you would have to mill the required slot in the pad.

Where it gets confusing is where the datasheet states ' Recommended P.C layout ( component side ). I would say that the pads are on the bottom solder side...not top, where the component will sit.

Do you have to use this part...I made a part for a nice SMT stereo socket recently...they are great!..much easier to protoype with.

I think that the tabs are there for more than positioning and are needed for giving the jack mechanical support so that constant insertions and removals of the phono plug does not eventually tear the jack loose from its solder joints. 

Your answer that the rectangles must be milled does not answer my question, which is how do I indicate that on the footprint so  that the board house will in fact mill the holes.

To answer your question, yes, I do need to use this part at this time so I have to figure this thing out.

Hi

I think that the diagram on the right, top and side view, gives the dimensions for milling. You would then draw the rectangle needed and change to layer 46 (milling).

There is a good article here that may help you further...

I would do a normal round through-plated hole. Room enough, but gives some

air inside the hole, I know

And also in the package drill the 5 mounting holes. Then they always follows

the jack when moved around in the pcb design

Christen

Thank you.  The link you provided has a very high-quality answer.  There are things in that explanation that I don't understand completely but they have to do with stuff that I haven't done before (pad level placement, drawing polygons, the whole CAM process) so I will put off asking for  clarifications until I spend some time trying to figure those out for myself.  But at least now I am on the right track. Thanks!

David, do you have a link or part number for that part?  Maybe I can find a way to substiture it for the other one after all.  It will definitely make my life easier.

Hi

The maufacturer is TruConnect and part number: PJ-327A.

Datasheet link here and the library part I created here...bare bones!...lol

Thank you!