Does anyone know the manufacturer and origins of this transistor?

jez · 2nd March 2010, 04:50 PM

Just got some of these in for a repair.The originals are of course Sanyo but I don't recognize the logo on this device and all the on line guides to manufacturers logos seem to omit this one....
I presume it's probably ok as a fake would at least try to look like the original!?
It came from a usually reputable source.

jez · 2nd March 2010, 06:52 PM

Everyone as stumped as me on this one then?

event horizon · 2nd March 2010, 07:01 PM

Quote:

Originally Posted by jez

Everyone as stumped as me on this one then?

Well i did try with google

Unfortunately decifering the first letter (of what we assume is the manufacturer) isn't easy, following that the second letter could be an "f" or a "j" & i didn't find anything

At least you aren't alone

Sorry...

E2A:- actually the last letter could be an "l" (as in L) if number 2 is an "f", something i didn't try.

woody · 2nd March 2010, 07:22 PM

I found a post about that by Nigel Goodwin. "Japanese Transistors only have part of
the number on them." Try adding the 2s to the number and look for 2sd1047. When I did this I came up with a data sheet with a picture of your device.

wahab · 2nd March 2010, 07:38 PM

Quote:

Originally Posted by woody

I found a post about that by Nigel Goodwin. "Japanese Transistors only have part of
the number on them." Try adding the 2s to the number and look for 2sd1047. When I did this I came up with a data sheet with a picture of your device.

Right.
This one look like a Fairchild, but the logo is curious..

jez · 2nd March 2010, 07:43 PM

The letters look like a very stylised "S" followed by an "H" . Fairly certain about the H but the S could just about possibly be some sort of symbol.... I reckon it's an S though!
Woody, thanks for your efforts but I'm well aware of the conventions of Japanese transistors... The devices were originally made by Sanyo and although I have identified a couple of "second source" manufacturers for these parts, none of them have a name or symbol that ties in with the device in the photo!
The way that manufacturers seem to keep changing names and logos lately it could even be some new Sanyo logo!?... doubt it though.

jez · 2nd March 2010, 07:50 PM

Event Horizon,
You know, I've just had another look and you could well be right about the letters after the stylised S .... I had only seen an H but it could just as well be a j or f followed by a t or l! I couldn't see the wood for the trees there!?

woody · 2nd March 2010, 08:26 PM

datasheetcatalog.com list 3 sources for that device. The pdf file drawing for the
Wingshing version of this device looks like it may be the one. wingshing computer components.

jez · 2nd March 2010, 11:23 PM

I took a look at that device and I can't see anything to indicate them as the source?

audiopip · 3rd March 2010, 12:27 AM

Date code wk 35 2009...so a newish part?

Sanken comes to mind but the logo is wrong I think.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Wonderful manufacturer	roberta	Vendor's Bazaar	3	6th August 2008 01:36 PM
Can bias transistor mount on top(body) of output transistor??	Leolabs	Solid State	23	16th February 2008 12:35 AM
Help for identify a transistor manufacturer	aldovan	Solid State	5	27th August 2007 10:32 AM
Chassis Manufacturer?	Jason	Parts	18	1st December 2001 01:52 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

2nd March 2010, 06:52 PM	#2
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	Everyone as stumped as me on this one then?

2nd March 2010, 07:22 PM	#4
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	I found a post about that by Nigel Goodwin. "Japanese Transistors only have part of the number on them." Try adding the 2s to the number and look for 2sd1047. When I did this I came up with a data sheet with a picture of your device.

2nd March 2010, 07:43 PM	#6
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	The letters look like a very stylised "S" followed by an "H" . Fairly certain about the H but the S could just about possibly be some sort of symbol.... I reckon it's an S though! Woody, thanks for your efforts but I'm well aware of the conventions of Japanese transistors... The devices were originally made by Sanyo and although I have identified a couple of "second source" manufacturers for these parts, none of them have a name or symbol that ties in with the device in the photo! The way that manufacturers seem to keep changing names and logos lately it could even be some new Sanyo logo!?... doubt it though.

2nd March 2010, 07:50 PM	#7
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	Event Horizon, You know, I've just had another look and you could well be right about the letters after the stylised S .... I had only seen an H but it could just as well be a j or f followed by a t or l! I couldn't see the wood for the trees there!?

2nd March 2010, 08:26 PM	#8
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	datasheetcatalog.com list 3 sources for that device. The pdf file drawing for the Wingshing version of this device looks like it may be the one. wingshing computer components.

2nd March 2010, 11:23 PM	#9
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	I took a look at that device and I can't see anything to indicate them as the source?

3rd March 2010, 12:27 AM	#10
audiopip diyAudio Member Join Date: Nov 2006 Location: Melbourne, AU	Date code wk 35 2009...so a newish part? Sanken comes to mind but the logo is wrong I think.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)