Identify a surface mount transistor

L

Len

Guest
Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt. The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock
circuit and that transistor it labeled 2F that's all the info I have on
it. Both lock and unlock seem to be identical in construction.

I have no idea what this transistor is other than it is used to send a
pulse to the relay in the van that unlocks the doors, nice part is if I
can find out what kind of transistor to use I can replace it with a
regular one as the board layout was made to accept either one.

Thanks

Len

REMOVE the NOCRAP in my address to reply.
 
Len wrote:
Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt. The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock
circuit and that transistor it labeled 2F that's all the info I have on
it. Both lock and unlock seem to be identical in construction.

I have no idea what this transistor is other than it is used to send a
pulse to the relay in the van that unlocks the doors, nice part is if I
can find out what kind of transistor to use I can replace it with a
regular one as the board layout was made to accept either one.

Thanks

Len

REMOVE the NOCRAP in my address to reply.
Click to expand...
2F transis FMMT2907A 2N2907A
 
In article <Xihmb.191798$0v4.14892430@bgtnsc04-
news.ops.worldnet.att.net>, user@domain.invalid mentioned...
Len wrote:
Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt. The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock
circuit and that transistor it labeled 2F that's all the info I have on
it. Both lock and unlock seem to be identical in construction.

I have no idea what this transistor is other than it is used to send a
pulse to the relay in the van that unlocks the doors, nice part is if I
can find out what kind of transistor to use I can replace it with a
regular one as the board layout was made to accept either one.

Thanks

Len

REMOVE the NOCRAP in my address to reply.

2F transis FMMT2907A 2N2907A
Click to expand...
A true 2N2907A is a PNP packaged in a metal can. So it would probably
be a PN2907 or the FMMTwhatever which are in a plastic package. A
good equivalent is the 2N4403 which might be easier o find.


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"Len" <Len.C@sympNOCRAPatico.ca> wrote in message
news:td2jpvg7u1tvh2ojtma5jpvckavqptedtu@4ax.com...
Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt. The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock
circuit and that transistor it labeled 2F that's all the info I have on
it. Both lock and unlock seem to be identical in construction.

I have no idea what this transistor is other than it is used to send a
pulse to the relay in the van that unlocks the doors, nice part is if I
can find out what kind of transistor to use I can replace it with a
regular one as the board layout was made to accept either one.

Thanks

Len

REMOVE the NOCRAP in my address to reply.
Click to expand...
Try this link.

http://www.marsport.demon.co.uk/smd/mainframe.htm

Ian.
 
Thanks guys I will see what I can come up with and get this thing going
again.

On Sat, 25 Oct 2003 03:09:10 -0700, Watson A.Name - "Watt Sun"
<alondra101@hotmail.com> wrote:

In article <Xihmb.191798$0v4.14892430@bgtnsc04-
news.ops.worldnet.att.net>, user@domain.invalid mentioned...


Len wrote:
Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt. The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock
circuit and that transistor it labeled 2F that's all the info I have on
it. Both lock and unlock seem to be identical in construction.

I have no idea what this transistor is other than it is used to send a
pulse to the relay in the van that unlocks the doors, nice part is if I
can find out what kind of transistor to use I can replace it with a
regular one as the board layout was made to accept either one.

Thanks

Len

REMOVE the NOCRAP in my address to reply.

2F transis FMMT2907A 2N2907A

A true 2N2907A is a PNP packaged in a metal can. So it would probably
be a PN2907 or the FMMTwhatever which are in a plastic package. A
good equivalent is the 2N4403 which might be easier o find.
Click to expand...
REMOVE the NOCRAP in my address to reply.
 
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