It's too little for me to go on. Check back if you get more information.

BTW, they didn't use aluminum for IC packaging. You're probably referring to a ceramic package.
View attachment 254111View attachment 254112
EDIT:
They do use aluminum packages (e.g. TO-3), but not for DIP packages.

 

View attachment 254119

That certainly looks metallic, but I think they'd choose materials that had similar contraction/expansion properties so the hermetic seal wouldn't be damaged from temperature cycling.

TI (National Semiconductor) only discuss 3 package types with hermetic seals: ceramic with a lid that's soldered on, ceramic top and bottom, and metal cans.

 

That certainly looks metallic, but I think they'd choose materials that had similar contraction/expansion properties so the hermetic seal wouldn't be damaged from temperature cycling.

TI (National Semiconductor) only discuss 3 package types with hermetic seals: ceramic with a lid that's soldered on, ceramic top and bottom, and metal cans.
View attachment 254120

Yes, its actually a sandwich with what looks like aluminium top and bottom and white ceramic in-between - I've not seen this before

 

I wonder if it could be low-alpha lead shielding?

 

Looking for sheet or info on Texas Instruments CMP1312; specifically the voltage/current specs. I am told it is the same as a TMS-1100 but can find no documentation thereof.

Any help appreciated. I wish I had found this thread years ago. Great stuff!
Cheers
Dukester

 

Hi there. I tried using every other search engine and tip on this site to identify a Thomson PN: TE103. Can you assist me with this please? is there a way to get or to buy a copy of the books you have?

 

How about a little context? Wider shot of the pc board, a photo of the device it is in, a description of the device - anything ? ?

ak

 

How about a little context? Wider shot of the pc board, a photo of the device it is in, a description of the device - anything ? ?

ak

Hello AnalogKid,

I thought this thread is for datasheet request through the archive OP has. I am not sure what is the function of this specific PCB, but it is a logic control PCB that goes into a control panel that operates an LPG plant (liquified petroleum gas).

 

Very likely a custom or mask programmed device.

 

I did not see this topic earlier and opened it already in anothe subject and copied the question info here. I hope that is not a problem?

Hi I am searching for the datasheet of this hi accuracy oscillator.
TCVCXO or VcTCXO.
I have a few of those 10MHz , 1.5ppm oscillators from an older project , but cannot find the datasheet anymore. They where is an philips databook for Quarz devices as I recal, but I lost that book when I moved.

I think the philips part no started with 9922.515 but I am not sure that is from an old partlist
Hoped to find that info on google etc but no success
The info that I have is in attached pictures showing the bottom and top side and a part of the schematic that I had saved in a file.

I hope someone could help me?