5.00 or 5.08 mm terminal blocks?

Spehro Pefhany

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Oct 30, 2002, 2:52:50 PM10/30/02

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Okay, a simple choice right? I want to standardize on one or the other
pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
series of instruments. Which should it be? All other things being equal,
5.00 mm gives a bit higher density. Prices, availability, ratings and
safety-agency approvals are all identical from what I can tell.

Suggestions?

Best regards,
Spehro Pefhany
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Roger N

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Oct 30, 2002, 3:30:11 PM10/30/02

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5.08 mm converts to 0.20" which makes it fit the holes on standard 0.1" hole
spacing circuit boards. In other words, use 5mm for metric compatibility or
5.08mm for inch compatibility. Hope this helps.

"Spehro Pefhany" <sp...@interlog.com> wrote in message
news:mMWv9.135207$%h2.7...@news02.bloor.is.net.cable.rogers.com...

Frank Bemelman

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Oct 30, 2002, 5:01:35 PM10/30/02

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"Spehro Pefhany" <sp...@interlog.com> schreef in bericht
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> Okay, a simple choice right? I want to standardize on one or the other
> pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
> series of instruments. Which should it be? All other things being equal,
> 5.00 mm gives a bit higher density. Prices, availability, ratings and
> safety-agency approvals are all identical from what I can tell.
>
> Suggestions?

My choice would be 5.08mm pitch. There isn't much 5mm stuff
around (yet?) and I have a feeling that it will only cause
a lot of aggrevation by the end user. Of cource you provide
the female connector with your instrument, but these things
do get lost sometimes. I would personally explode if I had
to install a phoenix style apparatus with 5.0 mm pitch and
only had 5.08 connectors. Well, perhaps not, I would use
whatever extra force it requires to jam that 12 pole 5.08mm
into the 5.0 mm pitch receiving end.

BTW, there is a 3.8mm pitch too (150 mil). At least that
one looks much different than 5.0mm versus 5.08mm! These
also have better isolation between the pins.

--
Thanks,
Frank Bemelman
(remove 'x' & .invalid when sending email)

Winfield Hill

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Oct 30, 2002, 4:28:36 PM10/30/02

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"Roger wrote...

>
> 5.08 mm converts to 0.20" which makes it fit the holes on standard 0.1" hole
> spacing circuit boards. In other words, use 5mm for metric compatibility or
> 5.08mm for inch compatibility. Hope this helps.
>

> "Spehro Pefhany" <sp...@interlog.com> wrote ...

>> Okay, a simple choice right? I want to standardize on one or the other
>> pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
>> series of instruments. Which should it be? All other things being equal,
>> 5.00 mm gives a bit higher density. Prices, availability, ratings and
>> safety-agency approvals are all identical from what I can tell.

Agilent appears to use 5.00mm spacing for the connectors on all their
power supplies (they stopped using barrier strips some years ago).
I say appears, as they don't say in the documentation and it's not
easy to measure with confidence for 4 and 5-wire connectors. We're
using 5.08mm mating connectors, but without bad incidents yet. :-(

Thanks,
- Win

Peter Bennett

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Oct 30, 2002, 5:58:26 PM10/30/02

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On Wed, 30 Oct 2002 19:52:50 GMT, "Spehro Pefhany"
<sp...@interlog.com> wrote:

>Okay, a simple choice right? I want to standardize on one or the other
>pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
>series of instruments. Which should it be? All other things being equal,
>5.00 mm gives a bit higher density. Prices, availability, ratings and
>safety-agency approvals are all identical from what I can tell.
>

I'd prefer the 5.08 mm - that is 0.2 inches, which makes board layout
easier if you work in inches.

--
Peter Bennett VE7CEI
GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html
Newsgroup new user info: http://vancouver-webpages.com/nnq

j.b. miller

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Oct 30, 2002, 6:11:41 PM10/30/02

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About 10 years ago I went with the 5.08 series. Still have a few boxes of 2
pole and 3 pole stackables collecting dust in Greensville,Ont. They are
really nice connectors.
As others have said 5.08mm = 200 thou = easy to layout !!

jay

Tony Williams

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Oct 30, 2002, 5:09:41 PM10/30/02

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In article <mMWv9.135207$%h2.7...@news02.bloor.is.net.cable.rogers.com>,

Spehro Pefhany <sp...@interlog.com> wrote:
> Okay, a simple choice right? I want to standardize on one or the other
> pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
> series of instruments. Which should it be? All other things being equal,
> 5.00 mm gives a bit higher density. Prices, availability, ratings and
> safety-agency approvals are all identical from what I can tell.

Choose the 0.2" pitch Speff.

--
Tony Williams.

Paul Burke

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Oct 31, 2002, 3:35:20 AM10/31/02

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Spehro Pefhany wrote:
>
> Okay, a simple choice right? I want to standardize on one or the other
> pitch of pluggable (Phoenix green style) pluggable terminal blocks for a
> series of instruments. Which should it be? All other things being equal,
> 5.00 mm gives a bit higher density. Prices, availability, ratings and
> safety-agency approvals are all identical from what I can tell.
>

I've never really bothered with the distinction. Leave enough slop in
the pin holes so that you can use either - it's only 3 thou per pitch.
In any case, the pins are usually quite sloppy in the housings. Split
long runs of connectors into shorter lengths to allow the error to catch
up.

Paul Burke

Spehro Pefhany

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Oct 31, 2002, 6:49:03 AM10/31/02

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In sci.electronics.components Tony Williams <to...@ledelec.demon.co.uk> wrote:
>
> Choose the 0.2" pitch Speff.

Okay, will do. Thank you, gentlemen.