MJ15003 transistor - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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
Reply
 
Thread Tools Search this Thread
Old 28th December 2011, 11:21 PM   #1
lizo is offline lizo  United States
diyAudio Member
 
Join Date: Dec 2011
Location: hawaii
Question MJ15003 transistor

Is the MJ15003 the same as rca 40409 transistor?
  Reply With Quote
Old 29th December 2011, 10:59 AM   #2
Enzo is offline Enzo  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Lansing, Michigan
In the same way a Ford F-150 full size pickup truck is the same as a Sears lawn tractor with cart.

No they are not the same.


The 40409 is a small TO39 NPN. That particular type came with an integral heatsink. SO if you look for the NTE equivalent (which does NOT have the heatsink), which electrically is similar, it will usually burn up. There are still people selling the 40409 (and PNP 40410) new old stock. The basic rating on the 40409 is 3W 0.7A 90V Gain 50-250 at 150ma.

The MJ15003 is a large TO3 type. The basic ratings for the MJ15003 are 250W 20A 140V Gain 25-150 at 5A.


As long as you consider the electrical specs, and include enough heat sink, there are numerous substitutes for the old 40409, but the MJ15003 would not be one of them.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mj15003 jpontius Solid State 6 2nd February 2009 09:05 PM
MJ15003 or MJ15022 ? neazoi Solid State 8 28th January 2009 08:54 AM
4 each of MJ15003/MJ15004 Stu Swap Meet 2 27th April 2008 09:34 AM
Transistor replacement for mj15003/4 leander Solid State 7 17th January 2006 07:56 PM
Tranzistors MJ15003/4 - What do u think ? adrianbodor Parts 2 17th October 2004 05:16 AM


New To Site? Need Help?

All times are GMT. The time now is 07:47 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2