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Alternate part for card edge receptacle

Added by Bhima Shankar 26 days ago

Hi,

Please suggest any substitutes for "JAE MM70-314B1-2-R300: card edge receptacle" as this part is out of stock in Digikey and Mouser for longer time.


Replies (9)

RE: Alternate part for card edge receptacle - Added by Bhima Shankar 25 days ago

Dear Michael,

Thank you very much for your prompt response.

Among the three options listed, two appear to be obsolete, and the remaining one has been out of stock for an extended period. Could you please suggest an alternate part or equivalent replacement for the JAE MM70-314B1-2-R300 connector?

Thanks

Shankar

RE: Alternate part for card edge receptacle - Added by Michael Williamson 24 days ago

The Aces connector listed on that page (91781-31408-001) is in stock in Digikey

https://www.digikey.com/en/products/detail/aces-connectors/91781-31408-001/16671838

We list it in a second column because our test fixture and development kit are built with the JAE part, so we have not built a board with it. From a specifications perspective, we believe it should be OK to use.

The challenge with this SOM is we need a typical 3mm (+/- 0.3) carrier board to inserted PCB spacing.

It also looks like Aces 52741-3140A-002 would also work (in stock in digikey).

Unfortunately, these don't have the same mounting / alignment pin arrangement and will require updating the PCB footprint for use.

I have not found a footprint compatible part with the JAE yet. Is your board already designed?

RE: Alternate part for card edge receptacle - Added by Thomas Catalino 21 days ago

Hello Shankar -

Just checking in on this, were you able to find supply to meet your needs?

Is your board already designed, or can you work with one of the suggested alternates?

Finally, does your design use the Hirose DF40 connector in addition to the edge connector? If not, you may have even more options.

Let us know how we can help further.

Thanks,
Tom

RE: Alternate part for card edge receptacle - Added by Bhima Shankar 21 days ago

Hi Thomas,

Thank you for your continued support and for the quick responses to our queries — we really appreciate your timely assistance.

we are using the new connector you suggested in our latest design. Additionally, we are taking the boot select options and I²C lines from the 100-pin Hirose connector.

Thanks

Shankar

RE: Alternate part for card edge receptacle - Added by Thomas Catalino 18 days ago

Great, thank you for the update!

RE: Alternate part for card edge receptacle RE: Inquiry about Heat Spreader 94-900813-3 - Added by Bhima Shankar about 13 hours ago

Dear Michael,

We are planning to purchase the heat spreader (part number 94-900813-3) for the MitySOM-AM57F SOM board. Could you please provide information on where it can be purchased and the associated pricing? Additionally, if available, we would appreciate it if you could share the STEP files or mechanical drawings of the heat spreader to reference the mounting hole locations.

Could you also let us know where we can purchase the SOM fan with heatsink, and whether the heatsink and fan assembly includes compatible mounting options for the SOM board?

Thank you in advance for your support.

Regards

Shankar

RE: Alternate part for card edge receptacle - Added by Michael Williamson about 8 hours ago

Hi Shankar,

STEP models and drawings for the reference heat spreaders can be found on this page:

https://support.criticallink.com/redmine/projects/mitysom_am57x/wiki/Heat_Spreader_Reference_Design

I will check on whether we can provide a quote for the spreader.

The FAN assembly included in our development kit is from Radian and is the FJ23 with 3M8815 (stick on pad) attachment option.

https://radianheatsinks.com/product/fj23/

With regards,
Mike

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