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.


--
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