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oddball parts

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kell

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Mar 16, 2006, 10:35:52 AM3/16/06
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somebody on another electronics discussion board (not a newsgroup)
asked where to find pins like the ones you see soldered on
the edge of the board in the photo at this link:
http://www.superrobotica.com/Images/S310130big.JPG
I thought it was interesting so I'm reposting it here.
,

Charles Schuler

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Mar 16, 2006, 4:19:16 PM3/16/06
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"kell" <kellro...@billburg.com> wrote in message
news:1142523352....@v46g2000cwv.googlegroups.com...

Are those chip capacitors along the bottom edge?


Chris

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Mar 16, 2006, 5:01:16 PM3/16/06
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Hi, Kell. The pins on the sides of the BASIC Stamp 2 in the link are
called detachable lead frame pins. I've gotten them in quantity from
Die Tech in York Haven, PA.

http://www.die-tech.org/dildip.htm

They're made from tinned phosphor bronze for springiness when they're
inserted on the board.

I don't believe Die Tech sells small quantities -- you buy by the reel.
But if you're putting together a prototype for a production run,
they'll be glad to provide samples. Be sure to confirm your PC board
thickness when placing the order. If you've got 1/16" PC board, go
with 5223. Their customer service people are great.

They'll also help you with relatively inexpensive hand insertion
equipment for small runs, as well as more expensive automation if
you're cranking up for something like the BASIC Stamp.

Good luck
Chris

Mike Harrison

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Mar 17, 2006, 6:20:00 AM3/17/06
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This is how they come - the carrier bar is scored to make it easy to snap off after attatching to
the PCB.
http://www.electricstuff.co.uk/temp/hybridpins.jpg

Rich Grise

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Mar 17, 2006, 6:11:19 PM3/17/06
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I don't see any small things that could be caps, although there
could be a whole passel of them on the bottom side.

Cheers!
Rich

Spehro Pefhany

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Mar 17, 2006, 6:55:31 PM3/17/06
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No, the pins clip over the edge of the substrate (PCB material in this
case) and are soldered to rectangular pads.

Here is exactly what's on that board (all 10 parts):

http://www.parallax.com/dl/docs/prod/schem/bs2.pdf

Looks like the 10K across the 20MHz ceramic resonator isn't stuffed.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
sp...@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

kell

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Mar 18, 2006, 4:41:11 PM3/18/06
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That's the information my buddy over at www.4hv.org was looking for.
He was very grateful when I went on 4hv.org and posted a link to your
reply.

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