illusiondweller
Posts: 1
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 (https://www.mouser.com/ProductDetail/Mo ... 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.

Thanks

aBUGSworstnightmare
Posts: 3586
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?

kpleban
Posts: 5
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?

wkeeling
Posts: 125
Joined: Fri Aug 25, 2017 2:16 pm
Location: Houston Texas
Contact: Facebook

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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