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Speaking of LEDs...
   Science and Technology news... Forum Index -> Electronics - Basics Forum  
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steamer
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PostPosted: Mon Jul 28, 2008 8:59 pm    Post subject: Speaking of LEDs... Reply with quote

--I>ve been looking *everywhere* for a specific kind of connector but I
can>t seem to find any. Ya know those long snap-apart 'sticks' that have
male leads on one end (that can be pushed thru PC board holes and soldered
on the back side) and female sockets on the other? I>ve been able to find them
with the tiny, circular female sockets but I can>t seem to find any with the
*square* female socket, like what you>d see on a proto board. What I>m trying
to do is populate one of those evilmadscientist boards with interchangeable
LEDs. The trouble is the square lead variety; i.e. the common, cheap ones,
don>t fit in the little round hole connectors. I found one outfit that will
sell me a two-pin connector like I need but their price was astronomical!
--Has anyone got a source for these in the snap-apart form, with
a 2.4mm (0.1") spacing?

--
"Steamboat Ed" Haas : "Hold on! we>re passing
Hacking the Trailing Edge! : through the moronosphere!"
www.nmpproducts.com
---Decks a-wash in a sea of words---
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John Fields
Guest






PostPosted: Mon Jul 28, 2008 10:40 pm    Post subject: Re: Speaking of LEDs... Reply with quote

On 28 Jul 2008 15:59:38 GMT, steamer <steamer@sonic.net> wrote:

[quote] --I>ve been looking *everywhere* for a specific kind of connector but I
can>t seem to find any. Ya know those long snap-apart 'sticks' that have
male leads on one end (that can be pushed thru PC board holes and soldered
on the back side) and female sockets on the other? I>ve been able to find them
with the tiny, circular female sockets but I can>t seem to find any with the
*square* female socket, like what you>d see on a proto board. What I>m trying
to do is populate one of those evilmadscientist boards with interchangeable
LEDs. The trouble is the square lead variety; i.e. the common, cheap ones,
don>t fit in the little round hole connectors. I found one outfit that will
sell me a two-pin connector like I need but their price was astronomical!
--Has anyone got a source for these in the snap-apart form, with
a 2.4mm (0.1") spacing?
[/quote]
---
Why not try it the other way around?

That is, populate the board with headers and use 2 pin female
connectors to hold the LEDs.

You can crimp or solder the square female pins to the LEDs, push the
pins into the housing and you>ll be done.

JF
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Tim Wescott
Guest






PostPosted: Mon Jul 28, 2008 10:57 pm    Post subject: Re: Speaking of LEDs... Reply with quote

steamer wrote:
[quote] --I>ve been looking *everywhere* for a specific kind of connector but I
can>t seem to find any. Ya know those long snap-apart 'sticks' that have
male leads on one end (that can be pushed thru PC board holes and soldered
on the back side) and female sockets on the other? I>ve been able to find them
with the tiny, circular female sockets but I can>t seem to find any with the
*square* female socket, like what you>d see on a proto board. What I>m trying
to do is populate one of those evilmadscientist boards with interchangeable
LEDs. The trouble is the square lead variety; i.e. the common, cheap ones,
don>t fit in the little round hole connectors. I found one outfit that will
sell me a two-pin connector like I need but their price was astronomical!
--Has anyone got a source for these in the snap-apart form, with
a 2.4mm (0.1") spacing?

Just about anything that makes a reliable fit to a 25-mil contact will[/quote]
work sorta OK for an LED as long as it>s for experimenting, not for a
product or high vibration environment.

Look in the DigiKey catalog for 100 mil spacing 25 mil square male
headers. Somewhere nearby, on one of the pages, there>ll be matching
sockets.

I>m doing some work with that particular combination right now and I
have the following part numbers in my notes:

57052-ND
57053-ND
S1012-19-ND
S1012-20-ND

One or two of these should help, probably not designed as snap-apart,
but possibly as an economical 2-contact or something that you can cut
apart yourself at the cost of raw edges and one lost contact at every cut.

Or try the usual surplus and semi-surplus places -- All electronics,
MPJA, Jameco, etc.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
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Jasen Betts
Guest






PostPosted: Wed Jul 30, 2008 3:28 pm    Post subject: Re: Speaking of LEDs... Reply with quote

On 2008-07-28, steamer <steamer@sonic.net> wrote:
[quote] --I>ve been looking *everywhere* for a specific kind of connector but I
can>t seem to find any. Ya know those long snap-apart 'sticks' that have
male leads on one end (that can be pushed thru PC board holes and soldered
on the back side) and female sockets on the other? I>ve been able to find them
with the tiny, circular female sockets but I can>t seem to find any with the
*square* female socket, like what you>d see on a proto board. What I>m trying
to do is populate one of those evilmadscientist boards with interchangeable
LEDs. The trouble is the square lead variety; i.e. the common, cheap ones,
don>t fit in the little round hole connectors. I found one outfit that will
sell me a two-pin connector like I need but their price was astronomical!
--Has anyone got a source for these in the snap-apart form, with
a 2.4mm (0.1") spacing?
[/quote]
I>d just get a cheap (folded sheet metal contact) DIP socket and
hacksaw it into two rows, OTOH DIPS with square pins do fit the
machined-pin DIP sockets too, so LEDs should work there too.

Bye.
Jasen
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