What does the dot behind a part number mean? - 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
Reply
 
Thread Tools Search this Thread
Old 5th August 2010, 07:49 AM   #1
wwenze is offline wwenze  Singapore
diyAudio Member
 
Join Date: Mar 2008
Default What does the dot behind a part number mean?

Like for example, OPA2604. instead of OPA2604?
  Reply With Quote
Old 5th August 2010, 07:50 AM   #2
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: The great city of Turnhout, BE
Blog Entries: 8
Quote:
Originally Posted by wwenze View Post
Like for example, OPA2604. instead of OPA2604?
Probably for a similar reason as there is a ? after OPA2604?

jd
__________________
Music is dither to the brain; lets me think below the usual chaos - me
Linear Audio Vol 13 is out! Check out my Autoranger and SilentSwitcher
  Reply With Quote
Old 6th August 2010, 12:36 AM   #3
wwenze is offline wwenze  Singapore
diyAudio Member
 
Join Date: Mar 2008
Haha, but I'm not laughing.

No seriously, what does the dot behind mean?

Click the image to open in full size.
Click the image to open in full size.
  Reply With Quote
Old 6th August 2010, 01:48 AM   #4
Enzo is offline Enzo  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Lansing, Michigan
Perhaps if we knew what catalog those clips were from... Never mind, google finds those are Farnell stock numbers.

Since this occurs in part numbers from two different sources of two different series, my initial reaction would be that it represents some distinction in the catalog house's system. Such things as whether they are lead free or not often get noted in part numbers.

SInce the alternative parts seem to link to the same data sheets from the manufacturers, I am led to guess the dot has to do with alternative sources for the same part.


A quick query to Farnell ought to answer this.
  Reply With Quote
Old 6th August 2010, 02:13 AM   #5
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
he, if you read it all, its obvious they have problemes with typing

(18-Jun-2010;
(18-Jun-201;

looks funny, eh

even if same type and code number, still different parts number.....maybe thats what dot indicates

I suspect error comes from software error due to communication error
like if two identical parts are stored with different explanations a software "think" they are different
just two different people typing different about the same part
dot is manually placed at the important number, by which they are sorted by software, and alike
__________________
sometimes we know very little, and sometimes we know too much
  Reply With Quote
Old 6th August 2010, 02:55 AM   #6
infinia is offline infinia  United States
diyAudio Member
 
infinia's Avatar
 
Join Date: May 2005
Location: SoCal
NOPB Lead free
or Tube packing
__________________
like four million tons of hydrogen exploding on the sun
like the whisper of the termites building castles in the dust
  Reply With Quote
Old 6th August 2010, 07:41 AM   #7
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: The great city of Turnhout, BE
Blog Entries: 8
Quote:
Originally Posted by wwenze View Post
Haha, but I'm not laughing.

No seriously, what does the dot behind mean?

Click the image to open in full size.
Click the image to open in full size.
I AM serious. Looks like a typo to me, just the random period.

jd
__________________
Music is dither to the brain; lets me think below the usual chaos - me
Linear Audio Vol 13 is out! Check out my Autoranger and SilentSwitcher
  Reply With Quote
Old 6th August 2010, 10:46 AM   #8
pjp is offline pjp  India
diyAudio Member
 
pjp's Avatar
 
Join Date: Nov 2006
Location: under the rainclouds
Quote:
Originally Posted by wwenze View Post
No seriously, what does the dot behind mean?
Farnell has 2 employees doing data entry, one of them has prior secretarial experience and ends all sentences with a dot.

  Reply With Quote
Old 6th August 2010, 12:01 PM   #9
diyAudio Member
 
Join Date: Aug 2005
In case of the 2604 one is a tube of 50 pieces, the other is a single chip.
edit: and with the 4562 the one is US stocked and the other is local stock.


I can see why they would need two exactly the same parts but with different order codes due to these differences. They probalby have some technical reason why the mfg. part number cannot be exactly the same so they add the dot to differentiate.

Last edited by mace1337; 6th August 2010 at 12:07 PM.
  Reply With Quote
Old 6th August 2010, 12:08 PM   #10
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Has it got the right number of legs,
yes/no

Does the device number appear correct,
yes/no

Is the package correct
yes/no

Three "yes's" get 'em ordered and stop worrying
  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
Fet dravers part number? Bad silver Car Audio 2 22nd June 2009 05:52 PM
Jfet part number mmerig Parts 5 23rd September 2007 04:19 PM
Need part number for a transformer bluegti Chip Amps 16 27th December 2006 03:06 AM
Part Number search (MOSFET) sup2jzgte Parts 3 27th January 2006 08:06 PM


New To Site? Need Help?

All times are GMT. The time now is 03:36 PM.


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
Wiki