I am using a surface mount Lumberg 3.5mm headphobe socket (part number 1503 02)...

https://www.lumberg.com/en/products/product/1503+02

However, I don’t understand how this socket is supposed to be assembled to the PCB.

The legs at the front of the socket are 1.05mm above the board and the legs at the rear of the socket is 1.2nn above the board, so how is this supposed to be soldered to the PCB ?


Side view...




Front view...


Rear view...


Because of this, the PCB manufacture is unable to solder the socket to the board….

 

Can you bend the taps down enough to touch the pcb?
If not I would manually solder the jack.

 

It's designed to be mounted in a cutout in the board, to keep a low profile.

The datasheet does not make that abundantly clear.

 

It's designed to be mounted in a cutout in the board, to keep a low profile.

The datasheet does not make that abundantly clear.

View attachment 365403

I did wonder that but too late now as the PCB has been manufactured. The footprint in the datasheet is poor, it tells you nothing.

But it still does not make sense with a cut out, because the front legs are 1.2mm and the rear legs are 1.02mm. Unless is suppose to be at an angle which would be strange but the description does call it an angular version so maybe its supposed to be at an angle ?

But then what are the two plastic positining pins for ? Because if there is a cutout in the board, the position pins wont do anything ?

 

Can you bend the taps down enough to touch the pcb?
If not I would manually solder the jack.

Im trying to understand how its designed to be used rather than bodge it !

 

The board cutout would need to be large enough so the jack is resting on the solder pads.
Or again, manually solder to the pcb with a good blob of solder without bending the tabs.

 

Unless is suppose to be at an angle which would be strange but the description does call it an angular version so maybe its supposed to be at an angle ?

I suppose if you had a very thin device, you might want to angle the jack to give some clearance for the plug when the device is setting on a surface.

As to the protrusions, the thought just hit me...

Does the same plastic body come with contacts designed with longer legs to be mounted ON the board rather than IN the board?

 

I suppose if you had a very thin device, you might want to angle the jack to give some clearance for the plug when the device is setting on a surface.

As to the protrusions, the thought just hit me...

Does the same plastic body come with contacts designed with longer legs to be mounted ON the board rather than IN the board?

They all seem to be angular versions

https://www.lumberg.com/en/products/sortiment/datacom#serie-015

 

Hello,

Put a wire through the hole and solder the wire to the pcb and socket.

Bertus

 

Look at 1503 03 – it appears to be for ON the board mounting but I didn't verify dimensions.

 

It is really a strange device, but in the top right corner of the product page is mentioned: "manual soldering only"

 

Is still does not look right even with a cut out in the board. With the rear legs flush with the board, there is still a gap with the front legs.




Front view...




Side view....



Rear view...




Even if it were angled it still does not look right...




I've sent an email to the manufacturer but have not had a response.


FYI - this is a device that could go into production, so bodging it with wire, large solder blobs etc. is not a solution. Its a simple headphone socket, so it should simply fit to the board !

 

It is really a strange device, but in the top right corner of the product page is mentioned: "manual soldering only"

I did see that, but it still does not explain how its supposed to be mounted

 

From intuition, maybe a rectangle cutout has to be made on the PCB so this part is lowered inside, and the "ear" lies flat on the pad?



Something that should be stated in the datasheet for the footprint, if true.

 

at first i thought like meth.... that cutout need to be T-shaped, wider at the rear contacts so that "U" part of the contacts drop into the cutout and only flat parts are on the top of PCB.



but then it hit me... that is wrong... cutout is rectangular... and those contacts fit to the BOTTOM side of the PCB. like below. the top side of the contacts is what faces PCB pads.

 

this is the board cutout

 

those contacts fit to the BOTTOM side of the PCB. like below. the top side of the contacts is what faces PCB pads.

Yep, I think you've got it. I guess the crosshatching on the pads insicate hidden lines...so the pads are on the bottom.

Note that the pads need to be rearranged to fit the bottom mounting.

 

it's a 3D chess style pcb mount, datasheet sucks...

 

 

Look at 1503 03 – it appears to be for ON the board mounting but I didn't verify dimensions.

Jon said it. Use 1503 03 instead.

https://www.lumberg.com/en/products/product/1503+03