At 01:42 PM 13/02/2012, you wrote:
>Good day to all.
>
>I'm working on a project that currently uses all SMD components.  Now
>I find that I need to add a 2n4401 or equivalent transistor to the
>board.  I have lots of room but very little height.  The standard
>2n4401 transistor in a TO-92 package is way too thick.
>
>I have some nice tiny digital transistors here: DTC143ES.  These are
>the shape of a TO-92 transistor but the body thickness is very thin -
>perhaps 0.050" or so.  They would be ideal except for those darned
>base resistors already integrated within the device.
>
>Can anyone suggest a part number for a general-purpose NPN transistor
>similar to a 2n4401 but in a very thin leaded package?
>
>Many thanks!

Not quite sure what you're asking for- leaded SMT or through-hole?

MMBT4401 is the SOT-23 equivalent of the 2N4401.

Those thin through-hole packages are/were mostly the province of
Japanese makers, so if you really want such a thing, try 2SCxxxx

Eg. 2SC1741 (2mm thin)

But most of that stuff is probably getting harder and harder to find,
so I'd be very reluctant to commit to it in a new design. The TO-92
will be around for a very long time, as will SOT-23.

Best regards, =20

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.