help with transistor ID.

T

timbo

Guest
Hi guys,

need help with iding a transistor out of a surround sound receiver.

the markings on it are as such:

115-
8 XE

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

anyone have any idea?

cheers,

tc
 
"timbo"
need help with iding a transistor out of a surround sound receiver.
Click to expand...

** Please supply receiver's make, age and country of manufacture.

----------------------------------------------------------------------






-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE
Click to expand...

** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.

----------------------------------------------------------





----------------------------------------------------------


it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

anyone have any idea?
Click to expand...

** Has it got three legs ?




.......... Phil
 
"timbo"
it's a sony STR-DE535, made in malaysia,
Click to expand...

** Funny - I had a STR-DE525 here 3 weeks ago.

Blown outputs, special types - had to get them from Speedy.


if i get a chance this arvo, i'll
pull out one from another channel & test it to see if it's npn/pnp etc..
Click to expand...

** Good idea.




............ Phil
 
"timbo"

the markings on it are as such:

115-
8 XE
Click to expand...

** You sure that number is "115 " and not " 118 " ??

A 2SK118 Nch J-FET fits the bill.




.......... Phil
 
On Wed, 5 Oct 2005 04:42:23 +0000 (UTC), timbo
<tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:

"timbo"

need help with iding a transistor out of a surround sound receiver.


** Please supply receiver's make, age and country of manufacture.

it's a sony STR-DE535, made in malaysia, no idea how old it is though, can't
find a date code on it anywhere. probably late 90's early 2000's or so..

-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE


** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.

power amp, it appears to be a driver tranny.

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.
Click to expand...
FWIW, NTE list a "Low Noise, High Gain Amplifier, Silicon NPN
Transistor" cross for a "147115-8", whatever that is:

http://www.nteinc.com/specs/100to199/NTE199.html

Does the package look like this one?
http://www.zetex.com/3.0/c1-11.asp#3pineline

What is the pinout? Is it NPN or PNP or FET? Does it form one side of
a complementary pair? If so, what is the p/n of the other transistor?
What is the part's circuit reference?

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.
 
On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:
"timbo"

need help with iding a transistor out of a surround sound receiver.


** Please supply receiver's make, age and country of manufacture.
Click to expand...
it's a sony STR-DE535, made in malaysia, no idea how old it is though, can't
find a date code on it anywhere. probably late 90's early 2000's or so..

-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE


** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.
Click to expand...
power amp, it appears to be a driver tranny.

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

anyone have any idea?


** Has it got three legs ?
Click to expand...
yep ;)

and currently all three are shorted.. if i get a chance this arvo, i'll
pull out one from another channel & test it to see if it's npn/pnp etc..

cheers,

tc.
 
"timbo"

yep, it's definitely "115"
Click to expand...
** My bet is that it is a 2SA1158.

Similar specs to a BC556.

http://homepage3.nifty.com/ebina2540/data/2SA/2SA1101-1200.htm




............ Phil
 
On Wed, 5 Oct 2005 06:37:35 +0000 (UTC), timbo
<tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Franc Zabkar <fzabkar@iinternode.on.net> wrote:
On Wed, 5 Oct 2005 04:42:23 +0000 (UTC), timbo
tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:

"timbo"

need help with iding a transistor out of a surround sound receiver.


** Please supply receiver's make, age and country of manufacture.

it's a sony STR-DE535, made in malaysia, no idea how old it is though, can't
find a date code on it anywhere. probably late 90's early 2000's or so..

-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE


** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.

power amp, it appears to be a driver tranny.

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

FWIW, NTE list a "Low Noise, High Gain Amplifier, Silicon NPN
Transistor" cross for a "147115-8", whatever that is:

http://www.nteinc.com/specs/100to199/NTE199.html

Does the package look like this one?
http://www.zetex.com/3.0/c1-11.asp#3pineline

What is the pinout? Is it NPN or PNP or FET? Does it form one side of
a complementary pair? If so, what is the p/n of the other transistor?
What is the part's circuit reference?

pnp bipolar transistor, pinout (looking from the label side) is ECB, not
part of a complimentary pair, unit is in a sont STR-DE535, part number Q554.
Click to expand...
Could it be a DTA115 digital transistor??? Could the "8" and/or the
"XE" refer to the value(s) of its integrated resistor(s), if any? Is
the transistor involved in muting, or is that done at the input???

Have you tried calling Prime Electronics?
http://www.prime-electronics.com.au/aaa/email.asp

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.
 
On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:
"timbo"


the markings on it are as such:

115-
8 XE



** You sure that number is "115 " and not " 118 " ??

A 2SK118 Nch J-FET fits the bill.
Click to expand...
yep, it's definitely "115"

just pulled one out of another channel & ran it over my atlas.

it's a pnp bjt. part number in the unit is Q554 if that's any help.

cheers,

tc.
 
On 2005-10-05, Franc Zabkar <fzabkar@iinternode.on.net> wrote:
On Wed, 5 Oct 2005 04:42:23 +0000 (UTC), timbo
tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:

"timbo"

need help with iding a transistor out of a surround sound receiver.


** Please supply receiver's make, age and country of manufacture.

it's a sony STR-DE535, made in malaysia, no idea how old it is though, can't
find a date code on it anywhere. probably late 90's early 2000's or so..

-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE


** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.

power amp, it appears to be a driver tranny.

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

FWIW, NTE list a "Low Noise, High Gain Amplifier, Silicon NPN
Transistor" cross for a "147115-8", whatever that is:

http://www.nteinc.com/specs/100to199/NTE199.html

Does the package look like this one?
http://www.zetex.com/3.0/c1-11.asp#3pineline

What is the pinout? Is it NPN or PNP or FET? Does it form one side of
a complementary pair? If so, what is the p/n of the other transistor?
What is the part's circuit reference?
Click to expand...
pnp bipolar transistor, pinout (looking from the label side) is ECB, not
part of a complimentary pair, unit is in a sont STR-DE535, part number Q554.

cheers,

tc
 
On 2005-10-05, Franc Zabkar <fzabkar@iinternode.on.net> wrote:
On Wed, 5 Oct 2005 06:37:35 +0000 (UTC), timbo
tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Franc Zabkar <fzabkar@iinternode.on.net> wrote:
On Wed, 5 Oct 2005 04:42:23 +0000 (UTC), timbo
tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:

"timbo"

need help with iding a transistor out of a surround sound receiver.


** Please supply receiver's make, age and country of manufacture.

it's a sony STR-DE535, made in malaysia, no idea how old it is though, can't
find a date code on it anywhere. probably late 90's early 2000's or so..

-----------------------------------------------------------------------


the markings on it are as such:

115-
8 XE


** Please supply the section of the circuit were it is used

- ie tuner, display, PSU, power amp, small signal audio etc.

power amp, it appears to be a driver tranny.

it's in a smaller package than say a bc548, rectangular with flat front &
back sides.

FWIW, NTE list a "Low Noise, High Gain Amplifier, Silicon NPN
Transistor" cross for a "147115-8", whatever that is:

http://www.nteinc.com/specs/100to199/NTE199.html

Does the package look like this one?
http://www.zetex.com/3.0/c1-11.asp#3pineline

What is the pinout? Is it NPN or PNP or FET? Does it form one side of
a complementary pair? If so, what is the p/n of the other transistor?
What is the part's circuit reference?

pnp bipolar transistor, pinout (looking from the label side) is ECB, not
part of a complimentary pair, unit is in a sont STR-DE535, part number Q554.

Could it be a DTA115 digital transistor??? Could the "8" and/or the
"XE" refer to the value(s) of its integrated resistor(s), if any? Is
the transistor involved in muting, or is that done at the input???
Click to expand...
it seems to be a driver for the poweramps in the unit - each poweramp has
one, so i doubt it's a dta115.


Have you tried calling Prime Electronics?
http://www.prime-electronics.com.au/aaa/email.asp
Click to expand...
thanks, i might give that a go.


cheers,

tc.
 
On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:
"timbo"


yep, it's definitely "115"


** My bet is that it is a 2SA1158.

Similar specs to a BC556.

http://homepage3.nifty.com/ebina2540/data/2SA/2SA1101-1200.htm
Click to expand...
so far that sounds like a winner.

thanks phil,

cheers,

tc.
 
115

hmm.. oh yes, i see why there must be an "8" in the part no.
lol
 
On 2005-10-06, Ed -} <ed@spamme.gov> wrote:
115

hmm.. oh yes, i see why there must be an "8" in the part no.
lol
Click to expand...
;)

well on the device it was:

115-
8 XE

& on a real close look, the 8 _could_ have been a "B", but i'm pretty sure
it was "8".

i reckon phil was closest here - pretty close specs to a bc556 (pretty sure
he said 556.. anyway, whatever it was, i'll try it on the weekend..)

with a bit of luck, it'll do the job.

cheers,

tc.
 
On Thu, 6 Oct 2005 01:08:01 +0000 (UTC), timbo
<tim.conlan@nospam-ansonicit.com.au> put finger to keyboard and
composed:

On 2005-10-05, Phil Allison <philallison@tpg.com.au> wrote:

"timbo"


yep, it's definitely "115"


** My bet is that it is a 2SA1158.

Similar specs to a BC556.

http://homepage3.nifty.com/ebina2540/data/2SA/2SA1101-1200.htm

so far that sounds like a winner.

thanks phil,

cheers,

tc.
Click to expand...
I'd be uncomfortable with that choice for several reasons. Firstly,
all my references (vrt, Google, Towers) show the package style as
TO-92. Secondly, if you can fit four characters on the second line,
then why does the "1158" need to be split across two lines? IMHO, this
suggests that the "-" is a significant component of the part number.
Thirdly, IME Japanese transistors often drop the leading "2S" when
space is unavailable, but never the leading A,B,C, or D.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.
 
ok, on reading the posts i see the reference to -8 which often has other meanings ie gain
the package is smaller than to-92,
it is common for the japs to remove all but the last 3 digits of the part no on the package.
 
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