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Joined: Sat Sep 11, 2021 3:17 pm

CM4 board-to-board connectors

Sat Sep 11, 2021 3:24 pm

Hi. I'm trying to source the high-density 100 pin connectors used to connect to the CM4. The connectors currently used on my board design are from Molex ( ... 16YQ%3D%3D). I haven't been able to find documentation on which connectors to use exactly and was wondering if anyone had any recommendations or could confirm that the connectors I've ordered will work.


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Joined: Tue Jun 30, 2015 1:35 pm

Re: CM4 board-to-board connectors

Sat Sep 11, 2021 4:19 pm

Did you take the time to check/read:
- CM4 data sheet?
- CM4IO data sheet?
- CM4IO kicad files?
a. 1.5mm with mating connector (clearance under CM4 0mm) : DF40C-100DS-0.4v
b. 3.0mm with mating connector (clearance under CM4 1.5mm): DF40HC(3.0)-100DS-0.4v
did Molex confirm your selected connector is a second source to Hirose DF40?

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Joined: Mon Aug 02, 2021 2:36 pm

Re: CM4 board-to-board connectors

Thu Sep 23, 2021 2:00 pm

The delivery time for Hirose on mouser and digi-key is about 20 weeks. Are there any alternative connectors?

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Location: Houston Texas
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Re: CM4 board-to-board connectors

Wed Oct 06, 2021 7:43 pm

does anyone have a source that has them in stock currently
Willie Keeling

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