I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a

Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise hard-
to-find size so that users would have to buy new adapters from them...
(?)

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?

Thanks in advance.

Mr. INTJ
San Diego, CA

On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ" wrote:

I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a

Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm

You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise hard-
to-find size so that users would have to buy new adapters from them...

I'd say that's a fairly safe bet. Of course, they'd argue that it is to protect
against all sorts of random/inappropriate supplies being connected to your Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?

If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more proprietary - if
that's possible.

rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"
wrote:

I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a

Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm

You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise hard-
to-find size so that users would have to buy new adapters from them...

I'd say that's a fairly safe bet. Of course, they'd argue that it is to
protect
against all sorts of random/inappropriate supplies being connected to your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?

If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.


I could not even confirm , off the web, including the service manual from
support.dell , whether the centre pin of an Inspiron 7000 DC connector was +
or - relative to the ground.

N_Cook wrote:
rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"
wrote:
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a
Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise hard-
to-find size so that users would have to buy new adapters from them...
I'd say that's a fairly safe bet. Of course, they'd argue that it is to
protect
against all sorts of random/inappropriate supplies being connected to your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.


I could not even confirm , off the web, including the service manual from
support.dell , whether the centre pin of an Inspiron 7000 DC connector was +
or - relative to the ground.

With most laptops, it's quickest & easiest to simply use a meter to see
which contact in the socket is shorted to the chassis.


--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Bob Larter wrote in message
...
N_Cook wrote:
rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"

wrote:
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a
Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise
hard-
to-find size so that users would have to buy new adapters from them...
I'd say that's a fairly safe bet. Of course, they'd argue that it is
to
protect
against all sorts of random/inappropriate supplies being connected to
your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.


I could not even confirm , off the web, including the service manual
from
support.dell , whether the centre pin of an Inspiron 7000 DC connector
was +
or - relative to the ground.

With most laptops, it's quickest & easiest to simply use a meter to see
which contact in the socket is shorted to the chassis.


--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------



But that does not tell you the polarity. After more than 1/2 hour
fruitlessly hunting the web, decided to hook up to a current limited supply
and monitor the voltage at the pins of the connector. If draws current and
voltage is high then the right way round. Incidently pin positive wrt the
ground/outer barrel for the Inspiron 7000. Perhaps in the States you only
have to state the volts and currents and just a DC symbol at the socket, not
the "C and dot" polarity designation


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

On Apr 27, 11:43*pm, "N_Cook" wrote:
Bob Larter wrote in message

... N_Cook wrote:
rebel wrote in message
.. .
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"





wrote:
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a
* *Outer dia.: 6.5mm
* *Inner dia.: 4.4mm
* *Pin dia.: 0.7mm
* *Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise
hard-
to-find size so that users would have to buy new adapters from them....
I'd say that's a fairly safe bet. *Of course, they'd argue that it is
to
protect
against all sorts of random/inappropriate supplies being connected to
your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.

I could not even confirm , off the web, including the service manual
from
support.dell , whether the centre pin of an Inspiron 7000 DC connector
was +
or - relative to the ground.

With most laptops, it's quickest & easiest to simply use a meter to see
which contact in the socket is shorted to the chassis.

--
* * W
* . | ,. w , * "Some people are alive only because
* *\|/ *\|/ * * it is illegal to kill them." * *Perna condita delenda est
---^----^---------------------------------------------------------------

But that does not tell you the polarity. After more than 1/2 hour
fruitlessly hunting the web, decided to hook up to a current limited supply
and monitor the voltage at the pins of the connector. If draws current and
voltage is high then the right way round. Incidently pin positive wrt the
ground/outer barrel for the Inspiron 7000. Perhaps in the States you only
have to state the volts and currents and just a DC symbol at the socket, not
the "C and dot" polarity designation

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list onhttp://home.graffiti.net/diverse:graffiti.net/

I didn't mention polarity in my original post, because I didn't think
of it as relevant to finding a replacement jack. I assumed that you
just mentioned the inability to find this information online as an
aside - however if *you* need that information for something you're
doing, I'll be glad to look at the A/C adapter and report back my
findings...

N_Cook wrote:
Bob Larter wrote in message
...
N_Cook wrote:
rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"

wrote:
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a
Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise
hard-
to-find size so that users would have to buy new adapters from them...
I'd say that's a fairly safe bet. Of course, they'd argue that it is
to
protect
against all sorts of random/inappropriate supplies being connected to
your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.

I could not even confirm , off the web, including the service manual
from
support.dell , whether the centre pin of an Inspiron 7000 DC connector
was +
or - relative to the ground.
With most laptops, it's quickest & easiest to simply use a meter to see
which contact in the socket is shorted to the chassis.

But that does not tell you the polarity.

Of course it does. I've never yet seen (out of many hundreds of laptops)
one in which the ground connection don't go to the chassis. All you have
to do is continuity-test between the SVGA shield (for example) & the
power socket.

After more than 1/2 hour
fruitlessly hunting the web, decided to hook up to a current limited supply
and monitor the voltage at the pins of the connector. If draws current and
voltage is high then the right way round. Incidently pin positive wrt the
ground/outer barrel for the Inspiron 7000. Perhaps in the States you only
have to state the volts and currents and just a DC symbol at the socket, not
the "C and dot" polarity designation

I'm not in the States. ;^) Some machines have the C dot symbol, some
don't. And BTW, some put that symbol on the nameplate, rather than next
to the socket.


--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Bob Larter Inscribed thus:

N_Cook wrote:
Bob Larter wrote in message
...
N_Cook wrote:
rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"

wrote:
I'm trying to replace the plug on a Dell laptop A/C power
adapter.
From the specs online, the barrel connector's measurements a
Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise
hard-
to-find size so that users would have to buy new adapters from
them...
I'd say that's a fairly safe bet. Of course, they'd argue that it
is
to
protect
against all sorts of random/inappropriate supplies being connected
to
your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't
find this particular size.

Does anyone know what this connector is called, or a source for
weird sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.

I could not even confirm , off the web, including the service
manual
from
support.dell , whether the centre pin of an Inspiron 7000 DC
connector
was +
or - relative to the ground.
With most laptops, it's quickest & easiest to simply use a meter to
see which contact in the socket is shorted to the chassis.

But that does not tell you the polarity.

Of course it does. I've never yet seen (out of many hundreds of
laptops) one in which the ground connection don't go to the chassis.
All you have to do is continuity-test between the SVGA shield (for
example) & the power socket.

I agree ! I've never seen one either.

After more than 1/2 hour
fruitlessly hunting the web, decided to hook up to a current limited
supply and monitor the voltage at the pins of the connector. If draws
current and voltage is high then the right way round. Incidently pin
positive wrt the ground/outer barrel for the Inspiron 7000. Perhaps
in the States you only have to state the volts and currents and just
a DC symbol at the socket, not the "C and dot" polarity designation

I'm not in the States. ;^) Some machines have the C dot symbol, some
don't. And BTW, some put that symbol on the nameplate, rather than
next to the socket.

I've also seen that information on the name/rating plate. Not a very
obvious place I agree.

--
Best Regards:
Baron.

Bob Larter wrote in message
...
N_Cook wrote:
Bob Larter wrote in message
...
N_Cook wrote:
rebel wrote in message
...
On Sun, 26 Apr 2009 17:20:19 -0700 (PDT), "Mr. INTJ"

wrote:
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a
Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm
You've done well to find those specs.

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise
hard-
to-find size so that users would have to buy new adapters from
them...
I'd say that's a fairly safe bet. Of course, they'd argue that it is
to
protect
against all sorts of random/inappropriate supplies being connected to
your
Dell
product.

Anyway, I've looked on Mouser and Googled in general, but I can't
find
this particular size.

Does anyone know what this connector is called, or a source for
weird
sizes like this?
If you turn one up, do let the group know.

As an aside, the earlier (non-concentric) style were even more
proprietary - if
that's possible.

I could not even confirm , off the web, including the service manual
from
support.dell , whether the centre pin of an Inspiron 7000 DC connector
was +
or - relative to the ground.
With most laptops, it's quickest & easiest to simply use a meter to see
which contact in the socket is shorted to the chassis.

But that does not tell you the polarity.

Of course it does. I've never yet seen (out of many hundreds of laptops)
one in which the ground connection don't go to the chassis. All you have
to do is continuity-test between the SVGA shield (for example) & the
power socket.

After more than 1/2 hour
fruitlessly hunting the web, decided to hook up to a current limited
supply
and monitor the voltage at the pins of the connector. If draws current
and
voltage is high then the right way round. Incidently pin positive wrt
the
ground/outer barrel for the Inspiron 7000. Perhaps in the States you
only
have to state the volts and currents and just a DC symbol at the socket,
not
the "C and dot" polarity designation

I'm not in the States. ;^) Some machines have the C dot symbol, some
don't. And BTW, some put that symbol on the nameplate, rather than next
to the socket.


--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------


I'm not familiar with laptops, the Dell was the second one I've ever looked
at, so I tread gingerly

"Mr. INTJ" wrote in message
...
I'm trying to replace the plug on a Dell laptop A/C power adapter.
From the specs online, the barrel connector's measurements a

Outer dia.: 6.5mm
Inner dia.: 4.4mm
Pin dia.: 0.7mm
Barrel length: 9.5mm

This is almost the same as EIAJ-05, but with different center pin
diameter. My guess is that Dell chose a non-standard or otherwise hard-
to-find size so that users would have to buy new adapters from them...
(?)

Anyway, I've looked on Mouser and Googled in general, but I can't find
this particular size.

Does anyone know what this connector is called, or a source for weird
sizes like this?

Thanks in advance.

Mr. INTJ
San Diego, CA

Try Here?

http://www.laptopsockets.co.uk/

Colin in Australia