what types are these?

[Michael (Micksa) Slade]

These are some SMT transistors I have come across recently:

http://knobbits.org/archived/2004-05/smt-transistors-1.jpg
http://knobbits.org/archived/2004-05/smt-transistors-2.jpg

(On a side note, gosh I like my digital camera )

So, how am I supposed to figure out which datasheets to look for from these
labels?

Mick.
--
My email address is "micksa@", not "micksa-news@".
VOTE [1] CAPITAL PUNISHMENT FOR SPAMMERS

 

[Lewin A.R.W. Edwards]

So, how am I supposed to figure out which datasheets to look for from these
labels?

<http://www.marsport.demon.co.uk/smd/mainframe.htm> is often helpful,
though not apparently with the two of your numbers that I tried to
look up.

 

[Walter Harley]

"Michael (Micksa) Slade" <micksa-news@knobbits.org> wrote in message
newsan.2004.05.05.15.06.59.983317@knobbits.org...

These are some SMT transistors I have come across recently:

http://knobbits.org/archived/2004-05/smt-transistors-1.jpg
http://knobbits.org/archived/2004-05/smt-transistors-2.jpg

(On a side note, gosh I like my digital camera )

So, how am I supposed to figure out which datasheets to look for from
these
labels?

There are some of these manufacturer codes listed at:

http://www.tkb-4u.com/code/smdcode/indexsmdcode.php

I haven't found a site that has all the mfg codes, so you may have to hunt
multiple sites. And the codes are not unique: that is, different devices
may share the same code. You'll need to use some other clues, such as where
they were in the circuit or how they behave on an ohmmeter, as well as what
package type they are, etc.

Failing that, I have gotten helpful responses from folks on
sci.electronics.repair.

And, um, I'm glad you like your digital camera, but sometimes a word is
worth a thousand pictures. On the smt-transistors-2.jpg, I can't make out
all of the codes from the picture; the lighting isn't good enough.

 

[Watson A.Name \"Watt Sun]

Michael (Micksa) Slade wrote:

These are some SMT transistors I have come across recently:

http://knobbits.org/archived/2004-05/smt-transistors-1.jpg
http://knobbits.org/archived/2004-05/smt-transistors-2.jpg

(On a side note, gosh I like my digital camera )

So, how am I supposed to figure out which datasheets to look for from these
labels?

Mick.

The HA1 and HA2, I would say, are Hall Effect sensors. So is this a
board that's from a motor, like the motor in a muffin fan or disk drive?
Those sensors are often used to sense rotation or position.

 

[Ross Herbert]

On Wed, 05 May 2004 15:12:05 GMT, "Michael (Micksa) Slade"
<micksa-news@knobbits.org> wrote:

These are some SMT transistors I have come across recently:

http://knobbits.org/archived/2004-05/smt-transistors-1.jpg
http://knobbits.org/archived/2004-05/smt-transistors-2.jpg

(On a side note, gosh I like my digital camera )

So, how am I supposed to figure out which datasheets to look for from these
labels?

Mick.

For the first two; (you will need to verify with a diode test if
possible)

"If" it is a 1P (and not IP) then it is a MMBT2222A NPN transistor.

An A6 is most likely a BAS16 diode.

Can't help with the second lot.