Teensy 4.1 socket header dimensions

B

bjorn

Member
Building a PCB in KiCad for the first time. I built the circuit around the Teensy 4.1 symbol and footprint, and then realised I need to specify headers for the board as I'm having it fully manufactured. So I need the two rows of 24 pins for GPIO, and also the 2x3 for Ethernet (I want the Ethernet header to hang down below the teensy and connect to a socket on the board, rather than using a cable to connect it).

The problem, as shown in the attached screenshot, is that the courtyard for the 2x3 ethernet header overlaps with the 1x24 GPIO header. I've seen in photos that they can fit, but I don't want to just shrink the courtyards and assume they'll be fine. Perhaps KiCad is being conservative, or perhaps I need specific headers.

I've tried looking up which parts the GPIO socket headers use, but I'm not really sure if what I'm looking at is reliable or even the information I need.

Thanks in advance :)
 

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To add - I'm confident that the pads are aligned correctly. I used a Teensy footprint behind to be certain of this
 
Just to clarify, on the PCB you're putting down 2mm pins for the ethernet connection and not the socket (which goes on the Teensy) ?
 
jmarsh said:
Just to clarify, on the PCB you're putting down 2mm pins for the ethernet connection and not the socket (which goes on the Teensy) ?
Click to expand...
Actually I was intending on putting the socket on the PCB, and the pins on the Teensy, just to keep it consistent. I'll try the other way around though, tbh I had thought the footprints would be about the same size but I'll try swapping the 2mm socket for pins.

Edit - yep, pin header also causes a courtyard overlap.
 

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It can work either way. The electrons really don't care which side has the socket and which has the header pins.

On the courtyard overlap issue, I tried a quick fit test by setting the actual sockets on a Teensy 4.1.

sockets.jpg
 
Thanks @PaulStoffregen and @defragster. So perhaps I should just remove the courtyard boundaries or ignore this error? Clearly they both fit with even a slight margin between by the looks of it. Perhaps the footprints in KiCad are just overly wide?
 
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