replacement for 2sb649/2sd669

millwood · 10th May 2003, 11:35 PM

I need a set of npn/pnp driver transistors in a 55-60 vdc applications (so the tip31/32 twin is out). originally the schematics used 2sb649/2sd669 but digikey doesn't have them so I am looking for alternatives here.

The transistors will be driving 3-4 mosfets, BTW.

Any suggestions? Thanks in advance.

moamps · 11th May 2003, 02:14 PM

Hi,

2SA1837, 2SC4793

Regards

rljones · 12th May 2003, 11:55 PM

millwood,

http://www.bdent.com/ stocks the pieces you are looking for.

regards, robert

millwood · 13th May 2003, 12:15 AM

thanks, guys. That's great.

rljones · 13th May 2003, 12:53 AM

the 2sb649/2sd669 driving output mosfets sounds like a randy slone amp. he seems to use them in many of his books; nice fellow.

10th May 2003, 11:35 PM	#1
millwood Account Disabled Join Date: Apr 2003 Location: US	replacement for 2sb649/2sd669 I need a set of npn/pnp driver transistors in a 55-60 vdc applications (so the tip31/32 twin is out). originally the schematics used 2sb649/2sd669 but digikey doesn't have them so I am looking for alternatives here. The transistors will be driving 3-4 mosfets, BTW. Any suggestions? Thanks in advance.

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
Equiv. Parts: 2SD669, 2SB649	Rarkov	Parts	51	21st May 2012 01:57 PM
Alternatives to 2SD669 and 2SB649 transistors	Si992	Solid State	13	26th February 2007 09:11 PM
Oh Those 2SB649 & 2SD669's Where to get?	obx	Parts	2	8th June 2004 02:01 AM
i want the datasheet of 2sd669 and 2sb649	smyg	Chip Amps	2	29th February 2004 12:50 PM
2sb649/2sd669	bmcevers	Solid State	2	11th August 2003 06:30 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

11th May 2003, 02:14 PM	#2
moamps diyAudio Member Join Date: Oct 2002 Location: Croatia	Hi, 2SA1837, 2SC4793 Regards

12th May 2003, 11:55 PM	#3
rljones diyAudio Member Join Date: Mar 2001 Location: california	millwood, http://www.bdent.com/ stocks the pieces you are looking for. regards, robert

13th May 2003, 12:15 AM	#4
millwood Account Disabled Join Date: Apr 2003 Location: US	thanks, guys. That's great.

13th May 2003, 12:53 AM	#5
rljones diyAudio Member Join Date: Mar 2001 Location: california	the 2sb649/2sd669 driving output mosfets sounds like a randy slone amp. he seems to use them in many of his books; nice fellow.

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