What is the thickness of RAM SIMMs (30 pins)

pfuentes69

Active Tinkerer
Oct 27, 2021
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Switzerland
I made myself today some 4MB 30-pin SIMMs, ending up in something quite tidy and nice, but totally useless because I made a mistake ordering the PCBs and were too thick.

What is the usual thickness?
 

AndyDiags

Tinkerer
Dec 18, 2021
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My calipers indicate somewhere between 1.20cm and 1.25cm for the couple sticks I have laying around. I measured the edges where there are not traces or printing.
 
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pfuentes69

Active Tinkerer
Oct 27, 2021
380
293
63
Switzerland
My calipers indicate somewhere between 1.20cm and 1.25cm for the couple sticks I have laying around. I measured the edges where there are not traces or printing.
Thanks!
JLCPCB offers 1.0 and 1.2, so ordering 1.2 seems to be the right choice (the ones I got were in the default 1.6 thickness, which is far too much)
 

rikerjoe

Tinkerer
Oct 31, 2021
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I just measured some 4 MB 30-pin SIMMS with calipers and got between 1.11 and 1.24 mm, for what it is worth.
 
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