Searching \ for '[EE] Farnel or RS-Components ethernet transformer' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/power.htm?key=transformer
Search entire site for: 'Farnel or RS-Components ethernet transformer'.

Exact match. Not showing close matches.
PICList Thread
'[EE] Farnel or RS-Components ethernet transformer '
2006\01\24@083346 by Electron

flavicon
face

[ SORRY, forgot to add the tags.. doing it now ]

Hello,
please, can anybody point me to the code# for a Farnel or RS-Components catalog's ethernet transformer suitable for use with the ENC28J60?

I looked in the PIClist's past posts, found one dated 14th of December that says "The specs are in the electrical section. As far as I could see magnetics
for an RTL8019 will be OK". Also, these 3 models were suggested in two other posts: 1) halo tg110-s050n2 2) fb2022 3) Pulse Engineering H2019.
Yet that doesn't help me, in practice, because I didn't find any of them neither in Farnel nor in RS-Componenents' catalogs.

Maybe I'm too optimist, but I can't imagine that nobody here has needed to experiment with the ENC28J60 and hasn't bought a suitable transformer from Farnell (or Newark InOne) or RS-Components. :P

By the way, is there any way to download in a big chunck the whole (I know it's huge) PIClist archive?

Thanks! Have a nice day!

2006\01\24@090050 by Mike Harrison

flavicon
face
On Tue, 24 Jan 2006 14:33:15 +0100, you wrote:

>
>[ SORRY, forgot to add the tags.. doing it now ]
>
>Hello,
>please, can anybody point me to the code# for a Farnel or RS-Components catalog's ethernet transformer suitable for use with the ENC28J60?
>
>I looked in the PIClist's past posts, found one dated 14th of December that says "The specs are in the electrical section. As far as I could see magnetics
>for an RTL8019 will be OK". Also, these 3 models were suggested in two other posts: 1) halo tg110-s050n2 2) fb2022 3) Pulse Engineering H2019.
>Yet that doesn't help me, in practice, because I didn't find any of them neither in Farnel nor in RS-Componenents' catalogs.
>
>Maybe I'm too optimist, but I can't imagine that nobody here has needed to experiment with the ENC28J60 and hasn't bought a suitable transformer from Farnell (or Newark InOne) or RS-Components. :P
>
>By the way, is there any way to download in a big chunck the whole (I know it's huge) PIClist archive?
>
>Thanks! Have a nice day!

Probably cheapest and easiest to just rip one from an old ethernet card...

2006\01\24@094856 by Wouter van Ooijen

face picon face
> please, can anybody point me to the code# for a Farnel or
> RS-Components catalog's ethernet transformer suitable for use
> with the ENC28J60?

Dunno about Farenell, but AFAIK the
http://www.voti.nl/shop/p/CON-LF1S022.html I sell will work. At the
moment I don't have that one, but I have plenty of XF10BASEG, which
should work too.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\01\24@114443 by kravnus wolf

picon face
I looked at farnel and found it to be very expensive.
I ordered
wouter's ethernet transformer. From the datasheet it
looks
compatible with the ENC28J60. I am still waiting for
other
parts to arrive before building the ENC28J60 project.

John

--- Wouter van Ooijen <spam_OUTwouterTakeThisOuTspamvoti.nl> wrote:

{Quote hidden}

> --

2006\01\24@133249 by Herbert Graf

flavicon
face
On Tue, 2006-01-24 at 14:33 +0100, Electron wrote:
> [ SORRY, forgot to add the tags.. doing it now ]
>
> Hello,
> please, can anybody point me to the code# for a Farnel or RS-Components catalog's ethernet transformer suitable for use with the ENC28J60?
>
> I looked in the PIClist's past posts, found one dated 14th of December that says "The specs are in the electrical section. As far as I could see magnetics
> for an RTL8019 will be OK". Also, these 3 models were suggested in two other posts: 1) halo tg110-s050n2 2) fb2022 3) Pulse Engineering H2019.
> Yet that doesn't help me, in practice, because I didn't find any of them neither in Farnel nor in RS-Componenents' catalogs.
>
> Maybe I'm too optimist, but I can't imagine that nobody here has needed to experiment with the ENC28J60 and hasn't bought a suitable transformer from Farnell (or Newark InOne) or RS-Components. :P
>
> By the way, is there any way to download in a big chunck the whole (I know it's huge) PIClist archive?

Just went through this same bother a few weeks ago.

Did some research and couldn't really find a solid recommendation.

So, I took a chance and ordered one I thought would work, and it does,
wonderfully! :)

I have no idea what Farnel or RS-Components are, the one I got was from
digikey:

Pulse Engineering: J00-0065
Digikey part #: 553-1237-ND

It's a jack with integrated center tapped magnetics and two LEDs for
link status.

I've now used it in two projects and it both work perfectly. They're
pretty cheap to, about $4USD in singles (cheaper if you get several).

Based on my research ANY magnetics that match the following SHOULD work:

- rated for 10BASE-T (rated for 100BASE-T is fine)
- center tapped on the transmit side

If it has power over ethernet that doesn't really matter (unless you
want power over ethernet).

I would recommend going for a jack with integrated magnetics, it makes
things much cleaner, less wires to connect, and they usually have the
ESD protection built in.

TTYL


-----------------------------
Herbert's PIC Stuff:
http://repatch.dyndns.org:8383/pic_stuff/

2006\01\24@135204 by Wouter van Ooijen

face picon face
> Based on my research ANY magnetics that match the following
> SHOULD work:
> - rated for 10BASE-T (rated for 100BASE-T is fine)
> - center tapped on the transmit side

I am no expert, but both connector/transformers and separate
transformers have a number of parameters, for instance the turn ratio of
the Tx and Rx sides. IIRC the ENC28J60 specs ask for 1:1 ratio on both,
so you should not use 1:2 types. And there are some other parameters
(rejection) which might be less important. or not.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu



2006\01\24@150220 by Herbert Graf

flavicon
face
On Tue, 2006-01-24 at 19:54 +0100, Wouter van Ooijen wrote:
> > Based on my research ANY magnetics that match the following
> > SHOULD work:
> > - rated for 10BASE-T (rated for 100BASE-T is fine)
> > - center tapped on the transmit side
>
> I am no expert, but both connector/transformers and separate
> transformers have a number of parameters, for instance the turn ratio of
> the Tx and Rx sides. IIRC the ENC28J60 specs ask for 1:1 ratio on both,
> so you should not use 1:2 types. And there are some other parameters
> (rejection) which might be less important. or not.

You are right, I forgot about that one. That said, of all the ones I did
research (ones speced as being 10BaseT or 100BaseT compatible), only one
wasn't 1:1.

These days I'd say 1:1 is pretty much standard, but you are right, you
should still ensure that's what you've got.

TTYL

-----------------------------
Herbert's PIC Stuff:
http://repatch.dyndns.org:8383/pic_stuff/

2006\01\24@173051 by nick weldin

flavicon
face
if you are in europe elfa have one that looks like it should be ok

this may take you to it (they have a strange bookmarking method) - if
it fails go to their site and search for ethernet transformer

Cheers

Nick

{Quote hidden}

>

2006\01\24@174034 by nick weldin

flavicon
face
not  as strange as not even posting the link though ;)

http://www.elfa.se/elfa-bin/dyndok.pl?dok=4661.htm

>
>this may take you to it (they have a strange bookmarking method)

2006\01\25@050033 by Alan B. Pearce

face picon face
>Maybe I'm too optimist, but I can't imagine that nobody
>here has needed to experiment with the ENC28J60 and
>hasn't bought a suitable transformer from Farnell
>(or Newark InOne) or RS-Components. :P

RS components handle the Wurth Electronic range of inductors. Check the
Wurth website at http://www.wuerth-elektronik.de/we_web/frames,LA,EN.php for
suitable transformers.

You may also like to check with your local Wurth representative. During the
Linear Technology Switchercad presentation here in the UK, the local Wurth
reps were present, and he intimated he would be approachable for supplying
samples.

2006\01\25@094048 by Electron

flavicon
face

Hello Herbert,


>Just went through this same bother a few weeks ago.

I imagined I wouldn't be the only one. ;P


>Did some research and couldn't really find a solid recommendation.

I imagined I wouldn't be the only one v2.0 ;P


>So, I took a chance and ordered one I thought would work, and it does,
>wonderfully! :)

Great :)


>I have no idea what Farnel or RS-Components are, the one I got was from
>digikey:

Farnell and RS-Components are "electronic components shops" just like
Digikey, but are my only valid options since I live in Italy.


>Pulse Engineering: J00-0065
>Digikey part #: 553-1237-ND
>It's a jack with integrated center tapped magnetics and two LEDs for
>link status.
>I've now used it in two projects and it both work perfectly. They're
>pretty cheap to, about $4USD in singles (cheaper if you get several).

Unfortunately it's unavailable both in Farnell and RS-Components. :(


>Based on my research ANY magnetics that match the following SHOULD
>work:
>- rated for 10BASE-T (rated for 100BASE-T is fine)
>- center tapped on the transmit side
>If it has power over ethernet that doesn't really matter (unless you
>want power over ethernet).
>I would recommend going for a jack with integrated magnetics, it makes
>things much cleaner, less wires to connect, and they usually have the
>ESD protection built in.

Thanks. Based on your recommendations, and for the benefit of others in
my same shoes, here's the result of my research:

Farnell:
#4303696  MH CONNECTORS SI-40138; ICM 1:1 FULL MAGNETICS LED
prices:
001 - 009 = €7.03
010 - 049 = €6.50
050 - 099 = €6.05
100 - ... = €5.65

other interesting products:
#4303672
#4303702
#4303714


>TTYL

2006\01\25@094049 by Electron

flavicon
face
At 22.40 2006.01.24 +0000, you wrote:
>not  as strange as not even posting the link though ;)
>
>http://www.elfa.se/elfa-bin/dyndok.pl?dok=4661.htm

Thanks.. I found it at Farnell though. :)

Hejdå!


>
>>
>>this may take you to it (they have a strange bookmarking method)
>

2006\01\25@120502 by nick weldin

flavicon
face
where did you find it at Farnell - I was looking
there and am about to do an order to them.

Cheers

Nick

{Quote hidden}

>>

More... (looser matching)
- Last day of these posts
- In 2006 , 2007 only
- Today
- New search...