Type of DB15 and DB37 connectors | LabJack
 
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Type of DB15 and DB37 connectors

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Adiwkr
adivacaru's picture
Type of DB15 and DB37 connectors

Hello, 

 

I am trying to design a pcb to plung in both db37 and db15 connectors on the T7. wherever i have looked i cannot find a suitable part that mates with the provided step file of the T7. 

Does anyone know what MPN is on the CB15 and CB37 terminal boards. A step file of the connector would also be highly appreciated. 

BR,

Adrian

LabJack Support
LabJack Support's picture
They are just standard DB15

They are just standard DB15 and DB37 connectors, so the exact part used in production can change.  Some equivalent parts are listed in the OEM section:

http://labjack.com/support/datasheets/t-series/oem-versions#db15-db37

We did recently hear about a problem with those connectors on the T7 CAD files, so we had our CAD contractor look at them and he provided new files which I just posted.  Perhaps these address the issue you are seeing:

https://labjack.com/support/datasheets/t-series/appendix-b-2

 

Adiwkr
adivacaru's picture
Hi, 

Hi, 

 

I have been looking further into this in the new model you fixed the pin spacing issues however the shape of the connector is also wrong.  

Here is a picture with T7_20200925.STEP and the  FCI 10090099-S374VLF (that got from the Amphenol FCI  - https://www.amphenol-icc.com/d-subminiature-economy-range-10090099s374vl...)  

in Grey there is the T7_20200925.STEP and in green the FCI 10090099-S374VLF step file. I have superimposed the 2 models to highlight the differences 

the same applies for the db15 as well as the any other standard DB37 or DB15 connector from any manufacturer for that matter. 

Could you please have your contractor correct this please ? 

It would be a shame to design a pcb that plug in the Labjack based on the wrong files and find out after investing effort into this that it does not fit :(. 

 

 

 

File Attachment: 
LabJack Support
LabJack Support's picture
Will certainly ask our DAC

Will certainly ask our DAC contractor about this.

I would say the reason this problem might exist, is the DB connectors where not intended for OEM applications and you might be the first to use them in mating to another board.  All previous applications like this have used the straight pin headers.

In the meantime, here is the location of DB37 pin 1 taken from the PCB gerber, which then defines the rest of the pin locations:

Pin 1 of the DB37 is at 91.4, 55.3 mm (3.598, 2.117 inch) and the pins are spaced by 2.7686 mm (0.109 inch). That is along a row. The spacing between the rows is 2.8702 mm (0.114 mil).

Origin is the corner of the PCB nearest the USB connector.

 

Will follow up with pin 1 location for the DB15.

 

LabJack Support
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Pin 1 of the DB15 is at 35.6,

Pin 1 of the DB15 is at 35.6, 55.3 mm (1.402, 2.177 inch).

LabJack Support
LabJack Support's picture
This is what our contractor

This is what our contractor said about the shape discrepancy:

The solid models were not available when we first made these, so I had to pull the dimensions off manually.  The critical dimension are within 0.001", but the overall shape didn't translate well.

He does have a solid model available now and is working on updating all our models using that.