Hi,
I have a customer that need to soldered the transistor, a DPAK upside down,
permanently.
Guess what, it is a satelite base station. It has been like this for past 2
years.
So, I do not think this is a prototype...
I got many more crazy way of soldering the component, even on the
underneath the BGA component.
KH Poh
At 10:45 AM 2/18/05 -0500, you wrote:
> Hi Jean-Francois
> That could be done for a prototype or a preprod or perhaps
a class 1 board. I have done it by gluing the part to the board ( upside up
), raising the leads so that they are floating and using jumpers to pads.
> Regards,
> Ramon
>
>
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]]On Behalf Of Bissonnette,
>Jean-Francois
>Sent: Friday, February 18, 2005 10:25 AM
>To: [log in to unmask]
>Subject: [TN] Flipped transistor?
>
>
>Here is a first for me!
>
>Before I go ruffling some feathers I would like to have others opinion.
I've just been informed of a modification on a boards that requires to
install a SOT23 NPN transistor to be fliped on its back in order to be
soldered. The poor leads are then bent backward to contact with the
board's lands of some other component.
>
>Engineering did not raise a flag on that yet... I'm worried to say the
least because I'm convinced that this is a NO NO!
>
>Anyone has seen that in the past?
>
>Thanks!
>
>Jean-François
>
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