TORX141 and TORX147 seem identical but they are not - diyAudio
Go Back   Home > Forums > Design & Build > Parts
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 12th November 2010, 09:14 AM   #1
diyAudio Member
Join Date: Sep 2009
Location: Timisoara
Default TORX141 and TORX147 seem identical but they are not

I built a DAC a few years ago and used TORX141 as optical receiver. It seems that TORX141 is not available anymore. The alternative is TORX147.
The two units seem to be identical according to the datasheets.
I bought two pieces of TORX147 only to find that the pins are reversed ( output pin is swapped with power pin ).

Last edited by rrrremus; 12th November 2010 at 09:28 AM.
  Reply With Quote
Old 13th November 2010, 08:00 AM   #2
jitter is offline jitter  Netherlands
diyAudio Member
jitter's Avatar
Join Date: Aug 2004
Location: Eindhoven, The Netherlands
The datasheets are correct, and so are your components. Yes, they may appear identical in the datasheets at first, but look more closely.
The Torx141 datasheet shows pinning bottom-view, the Torx147 datasheet does not.

Torx141 bottom view: VCC - GND - Output.
Torx147 rear view: VCC - GND - Output
Torx147 converted to bottom view: Output - GND - Vcc.

So, indeed, they are not identical.

Last edited by jitter; 13th November 2010 at 08:04 AM.
  Reply With Quote
Old 15th November 2010, 04:14 AM   #3
diyAudio Member
Join Date: Sep 2009
Location: Timisoara
Both components are presented in the international standard mechanical design layout so then the pins should have been identical.
But unfortunately you are right.
  Reply With Quote
Old 21st December 2010, 06:43 AM   #4
diyAudio Member
Join Date: Sep 2009
Location: Timisoara

Last edited by rrrremus; 21st December 2010 at 07:09 AM.
  Reply With Quote
Old 23rd December 2010, 12:02 PM   #5
qusp is offline qusp  Australia
diyAudio Member
qusp's Avatar
Join Date: Oct 2009
Location: Brisbane, Australia
what else do you need to know? why not reverse the wiring?
  Reply With Quote
Old 23rd December 2010, 05:26 PM   #6
diyAudio Member
Join Date: Sep 2009
Location: Timisoara
I used a TORX141 that had been marked as "tentative" in the datasheet when building the first DAC. Now i want to put together the second one and I cannot find a torx receiver with this pin configuration anymore. I am now thinking of building a small adapter PCB to fit the TORX147.
  Reply With Quote


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
Two IDENTICAL units, different sound!?!? bear Digital Source 25 30th June 2009 06:34 AM
+/- rail electrolytic caps - need to be identical Ziggy Solid State 2 29th May 2009 05:31 AM
One B+ for the both driver and output tube if they are identical? vhrynchuk Tubes / Valves 5 26th August 2006 01:54 AM
Two identical drivers HogieWan Multi-Way 3 12th December 2005 08:10 PM
What would be the effect if 2 identical drivers are ...? Lito Multi-Way 1 13th October 2003 09:42 AM

New To Site? Need Help?

All times are GMT. The time now is 06:19 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2