Best PCB to PCB connectors

S

samIam

Guest
I need to link up/attach two pcb's together.

Whats the best connector for the bus lines? I need at least 40 pins.
Someone suggested I use the same connector used on an IDE harddrive
and on PC motherboards.

But I dont know the name of that connector and cabling (i call it
IDE cables)?

I need to know the name of those jumper pins arranged in 2 rows of 20
Plus I would need a means of crimping my own cables

Anyone have any ideas?
I am ruling out cardedge connectors for now since I need to mount
the boards horizontal to one another
 
On Wed, 08 Mar 2006 19:27:48 -0500, the renowned samIam <him@here.com>
wrote:

I need to link up/attach two pcb's together.

Whats the best connector for the bus lines? I need at least 40 pins.
Someone suggested I use the same connector used on an IDE harddrive
and on PC motherboards.

But I dont know the name of that connector and cabling (i call it
IDE cables)?
Click to expand...
40 pin shrouded male headers (20 x 2) 0.1" pitch and 40 pin IDC female
connectors, and some 40 pin 0.050" pitch flat cable (1.27mm). Check
catalogs for part numbers from your favorite connector suppliers.

I need to know the name of those jumper pins arranged in 2 rows of 20
Plus I would need a means of crimping my own cables
Click to expand...
You can use a vice/vise to do the crimping. No big deal for small
quantity. Use strain reliefs on the connectors if you want.

Anyone have any ideas?
I am ruling out cardedge connectors for now since I need to mount
the boards horizontal to one another
Click to expand...

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

I have used 2.54" pitch shrouded IDC headers and sockets to
interconnect PCB's, the same as used on hard drives etc. They are not
small profile but are cheap and reliable, and are available in straight
and right-angle mounting. Some manufacturers are Molex and Multicomp.
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable,
Click to expand...
A *Hammer* !?? Us real proffessionals use a bench vise! :)


--

John Devereux
 
John Devereux wrote:
"electronic-eng.com" <alan.finnerty@electronic-eng.com> writes:

I have used 2.54" pitch shrouded IDC headers and sockets to
interconnect PCB's, the same as used on hard drives etc. They are not
small profile but are cheap and reliable, and are available in straight
and right-angle mounting. Some manufacturers are Molex and Multicomp.
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable,

A *Hammer* !?? Us real proffessionals use a bench vise! :)


--

John Devereux
Click to expand...
Admittedly a bench vise is better, but I would imagine the majority are
more likely to have a hammer than a bench vise available to them ;)
 
Guys,
Both methods are pretty dodgey. Careful assembly with the vise would
definitely be less likely to fail if assembled by someone that knew how not
to overstress the part or the wire connections.
If you read the detailed descriptions on assembly/reliability of those
connector types, you will find that there are limitations not only on force
applied to the connector but also finished clinching height. The finished
clinching height ensures that the wires are not over inserted (yes that is
very possible), deforming the contacts and causing unreliable connections.

--
Sincerely,
Brad Velander.

"electronic-eng.com" <alan.finnerty@electronic-eng.com> wrote in message
news:1142542132.527053.95990@j52g2000cwj.googlegroups.com...
John Devereux wrote:
"electronic-eng.com" <alan.finnerty@electronic-eng.com> writes:


A *Hammer* !?? Us real proffessionals use a bench vise! :)


--

John Devereux

Admittedly a bench vise is better, but I would imagine the majority are
more likely to have a hammer than a bench vise available to them ;)
Click to expand...
 
"Brad Velander" <bveland@SpamThis.com> writes:

"electronic-eng.com" <alan.finnerty@electronic-eng.com> wrote in message
news:1142542132.527053.95990@j52g2000cwj.googlegroups.com...

John Devereux wrote:
A *Hammer* !?? Us real proffessionals use a bench vise! :)

Admittedly a bench vise is better, but I would imagine the majority are
more likely to have a hammer than a bench vise available to them ;)

Guys,
Both methods are pretty dodgey.
Click to expand...
Just thought I should clarify here that my "real proffessionals use a
bench vise" comment was supposed to be humorous!

--

John Devereux
 
Ken Smith wrote:
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable,

A *Hammer* !?? Us real proffessionals use a bench vise! :)
I use a pair of "vice grips"
Click to expand...
I just put it on the floor and stand on it.
 
In article <1142542132.527053.95990@j52g2000cwj.googlegroups.com>,
electronic-eng.com <alan.finnerty@electronic-eng.com> wrote:
John Devereux wrote:
"electronic-eng.com" <alan.finnerty@electronic-eng.com> writes:
[...]
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable,

A *Hammer* !?? Us real proffessionals use a bench vise! :)
Click to expand...
I use a pair of "vice grips"

--
--
kensmith@rahul.net forging knowledge
 
On Fri, 17 Mar 2006 16:00:08 +0000, the renowned Paul Burke
<paul@scazon.com> wrote:

Ken Smith wrote:
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable,

A *Hammer* !?? Us real proffessionals use a bench vise! :)
I use a pair of "vice grips"

I just put it on the floor and stand on it.
Click to expand...
The $30 or so a decent Record vise/vice costs (a small one with hard
plastic jaw liners), is well, well worth it. I can't imagine a hammer
producing reliable results.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 
John,
It seemed as though you were being facetious but I stated it just for
the benefit of the doubt.

I know a lot of people do use vises and think nothing of it, but they
obviously haven't seriously read the literature with respect to connection
reliability. I have on rare occasions used a vise as well but with a great
deal of caution and knowing the technical details and possible
ramifications. I was also doing my best to ensure that I didn't over clench
the part.

--
Sincerely,
Brad Velander.

"John Devereux" <jdREMOVE@THISdevereux.me.uk> wrote in message
news:87oe055tk8.fsf@cordelia.devereux.me.uk...
Just thought I should clarify here that my "real proffessionals use a
bench vise" comment was supposed to be humorous!

--

John Devereux
Click to expand...
 
"Brad Velander" <bveland@SpamThis.com> wrote in message
news:vgMSf.152976$sa3.58361@pd7tw1no...
I know a lot of people do use vises and think nothing of it, but they
obviously haven't seriously read the literature with respect to connection
reliability.
Click to expand...
I'd suggest that unless you're in a production environment and worrying about
yield, connection reliability decreases due to less-than-perfectly-crimped
connections is probably the least of your worries. Far more often I've just
seen build put the connectors on backwards, off one row, skewed at an angle,
etc.! :)
 
Hammer, vice, feet, you forehead, whatever! These suggestions are only
for hobbyists and quick prototyping on your bench. For actual
production cable assemblies shipping to customers you should definately
use the manufacturers recommended kit for maximum reliability.

Alan
www.electronic-eng.com
 
samIam wrote:
I need to link up/attach two pcb's together.

Whats the best connector for the bus lines? I need at least 40 pins.
Someone suggested I use the same connector used on an IDE harddrive
and on PC motherboards.

But I dont know the name of that connector and cabling (i call it
IDE cables)?

I need to know the name of those jumper pins arranged in 2 rows of 20
Plus I would need a means of crimping my own cables

Anyone have any ideas?
I am ruling out cardedge connectors for now since I need to mount
the boards horizontal to one another
Click to expand...
Hi samlam

I have used 2.54" pitch shrouded IDC headers and sockets to
interconnect PCB's, the same as used on hard drives etc. They are not
small profile but are cheap and reliable, and are available in straight
and right-angle mounting. Some manufacturers are Molex and Multicomp.
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable, or
crimped stranded wire in which case a cheap crimper from your discount
hardware store will do or a regular pliers will also do albeit a bit
fiddly. For connector manufacturers links visit the connectors page on
my electronic engineering website business directory:

http://www.electronic-eng.com/busdir/connector.html

Best regards
Alan
www.electronic-eng.com
 
electronic-eng.com wrote:
samIam wrote:
I need to link up/attach two pcb's together.

Whats the best connector for the bus lines? I need at least 40 pins.
Someone suggested I use the same connector used on an IDE harddrive
and on PC motherboards.

But I dont know the name of that connector and cabling (i call it
IDE cables)?

I need to know the name of those jumper pins arranged in 2 rows of 20
Plus I would need a means of crimping my own cables

Anyone have any ideas?
I am ruling out cardedge connectors for now since I need to mount
the boards horizontal to one another

Hi samlam

I have used 2.54" pitch shrouded IDC headers and sockets to
interconnect PCB's, the same as used on hard drives etc. They are not
small profile but are cheap and reliable, and are available in straight
and right-angle mounting. Some manufacturers are Molex and Multicomp.
To attach cables to these headers, you can use ribbon cable in which
case a hammer will suffice to close the connector onto the cable, or
crimped stranded wire in which case a cheap crimper from your discount
hardware store will do or a regular pliers will also do albeit a bit
fiddly. For connector manufacturers links visit the connectors page on
my electronic engineering website business directory:

http://www.electronic-eng.com/busdir/connector.html

Best regards
Alan
www.electronic-eng.com
Click to expand...
Sorry, that should be 2.54mm not 2.54" !
 
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