8-pin LCC socket

[[email protected]]

I'm looking to mount a chip that comes in an 8-pin LCC package (5 mm x
5 mm x 2 mm ceramic). However, I've yet to be able to find a socket or
adapter (under $50) to accept an 8-pin LCC chip. Is there any
suppliers for 8-pin LCC sockets or adapters that I'm not aware
of/haven't found yet? I'd prefer to convert it to a DIP type socket,
but am open to whatever I can find...

For reference, the part I'm looking to mount is located here:

http://www.analog.com/UploadedFiles/Data_Sheets/50606390ADXL78_a.pdf

Thanks in advance,
Dave

 

[Roger Hamlett]

I'm looking to mount a chip that comes in an 8-pin LCC package (5 mm x
5 mm x 2 mm ceramic). However, I've yet to be able to find a socket or
adapter (under $50) to accept an 8-pin LCC chip. Is there any
suppliers for 8-pin LCC sockets or adapters that I'm not aware
of/haven't found yet? I'd prefer to convert it to a DIP type socket,
but am open to whatever I can find...

For reference, the part I'm looking to mount is located here:

http://www.analog.com/UploadedFiles/Data_Sheets/50606390ADXL78_a.pdf

Thanks in advance,
Dave

The units you are looking at, are adapters designed for applications like
programmers, inserting test heads etc., hence the pricing. Generally
unless a part needs to be removed for programming, a surface mount part
would just be soldered in place. The cheapest solution if you just need to
remove the IC assembly, or want to only have DIL layouts on the main
board, would just be to use an interposer board, with the IC layout in the
centre, and two pad rows for DIL headers at the edges.
If however the chip really needs to be socketted for some reason, then the
pricing will depend massively on the quantity involved. For mass
production, a system like:
http://www.pisockets.com/pdfs/Test_Sockets_Top_Loader.pdf
Will give the shortest interconnection, and in bulk, a good price.
I don't know if it is one of the ones you have found, but Loranger part
no: 03450 081 6215, might be the required socket, and should be available
a lot cheaper than the sort of pricing you are mentioning.

Best Wishes

 

[Rene Tschaggelar]

I'm looking to mount a chip that comes in an 8-pin LCC package (5 mm x
5 mm x 2 mm ceramic). However, I've yet to be able to find a socket or
adapter (under $50) to accept an 8-pin LCC chip. Is there any
suppliers for 8-pin LCC sockets or adapters that I'm not aware
of/haven't found yet? I'd prefer to convert it to a DIP type socket,
but am open to whatever I can find...

For reference, the part I'm looking to mount is located here:

http://www.analog.com/UploadedFiles/Data_Sheets/50606390ADXL78_a.pdf

For one-of, glue this chip upside down onto a dip8 socket,
then use tiny wires to connect to the pins.

Rene

 

[[email protected]]

The units you are looking at, are adapters designed for applications like
programmers, inserting test heads etc., hence the pricing. Generally
unless a part needs to be removed for programming, a surface mount part
would just be soldered in place. The cheapest solution if you just need to
remove the IC assembly, or want to only have DIL layouts on the main
board, would just be to use an interposer board, with the IC layout in the
centre, and two pad rows for DIL headers at the edges.
If however the chip really needs to be socketted for some reason, then the
pricing will depend massively on the quantity involved. For mass
production, a system like:
http://www.pisockets.com/pdfs/Test_Sockets_Top_Loader.pdf
Will give the shortest interconnection, and in bulk, a good price.
I don't know if it is one of the ones you have found, but Loranger part
no: 03450 081 6215, might be the required socket, and should be available
a lot cheaper than the sort of pricing you are mentioning.

Fantastic. I believe that Loranger socket may be what I'm looking for.
I'm inquiring about the contact locations to make sure the contacts
will match up. Hopefully they accomodate small orders.

Regarding interposer boards, are most custom made? Or are there any
commercially available boards that would fit this chip? I'm basically
looking for any way to mount and connect this chip. (I'm a mechanical
engineer by degree, which might explain the basic questions)

Thanks again for the help,
Dave

 

[Roger Hamlett]

Fantastic. I believe that Loranger socket may be what I'm looking for.
I'm inquiring about the contact locations to make sure the contacts
will match up. Hopefully they accomodate small orders.

Regarding interposer boards, are most custom made? Or are there any
commercially available boards that would fit this chip? I'm basically
looking for any way to mount and connect this chip. (I'm a mechanical
engineer by degree, which might explain the basic questions)

Thanks again for the help,
Dave

There are commercial interposer boards, but generally, unless you need
thousands off, it is cheaper to just make a custom board. Remember that
there are prototyping PCB board companies who price only by area, so you
can just do an artwork for a dozen such boards, and the cost will probably
only be a couple of dollars each.

Best Wishes

 

[Michael J. Noone]

sparkfun.com does a number of breakout boards for analog accelerometers
- I'd reccomend looking there.