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Hirose connectors - what does the Cavity No. mean?

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carl0s:
On many Hirose connectors, there is a cavity number on them. It's actually a letter, but the datasheet calls it a Cavity No.

Any idea what it is? Is it just a revision number ? That would seem redundant when they have a lot number already.

e.g., page 4 of this d/s http://www.farnell.com/datasheets/2691091.pdf

Somebody just finally bought some of those from me on eBay, and until I took out the microscope I wasn't actually sure I'd found the right part in my collection. I noticed mine say D35 on them.. so they are a D cavity.



amyk:
The cavity of the mold in which they were originally produced?

fcb:

--- Quote from: amyk on April 02, 2020, 12:05:14 am ---The cavity of the mold in which they were originally produced?

--- End quote ---
This.

The injection mold tool will have multiple cavities within it (I've seen them with between 2 and 64), so that each cycle of the tool (10-60 seconds) will produce multiple pieces keeping the cost per piece down. Any wear or faults are more easily traced to that section of the tool.

carl0s:
Ah, amazing. Thanks!

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