Author Topic: Connector hole size in NHD-1.69-160128UGC3  (Read 3242 times)


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Connector hole size in NHD-1.69-160128UGC3
« on: November 07, 2016, 08:51:51 AM »
We have had a problem inserting 20 pin headers in the 1.69 inch OLED PCB.
The drawing shows the hole diameter for the 20pin connector is 0.8mm, the header that Newhaven supplies is 0.64mm square. All other manufacturers of headers are a similar size. The diagonal for a 0.64mm square pin is 0.9mm, which exceeds the diameter of the connector holes in the PCB.

We have been sourcing Samtec low profile connectors due to the need for a small board to board distance, these also have 0.64mm square pins. The only way to insert these is to use the jaws of a vice with suitable protection. I have found that turned pins fit but am unable to source parts that allow the right board to board spacing.

We will shortly be moving to volume production and this assembly method not feasible. Has this issue been reported by others? Am I missing something?


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Re: Connector hole size in NHD-1.69-160128UGC3
« Reply #1 on: November 16, 2016, 03:08:56 PM »

Would you be able to tell me what the date code on the display is, or if possible to take a picture of the back of the display?

We have made a change which has larger thru-holes for our OLED displays.
However before this we traditionally used the TE 9-146282-0-20 single row pin headers for the older models.


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Re: Connector hole size in NHD-1.69-160128UGC3
« Reply #2 on: November 18, 2016, 06:33:59 AM »
I see a date code of 48 15 printed on the PCB. Previous PCBs we have used do not have a code (purchased in Q2 2015). We have the same problems with both batches of boards.


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