Aleph's Heatsink - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 1st February 2004, 12:50 AM   #1
diyAudio Member
 
Join Date: Jan 2003
Location: Bangkok
Default Aleph's Heatsink

Just a question on heatsink...

I have mounted IRFP240 to an aluminium flat plate then bolt the flat plate to the heatsink, during the test I found that the heat flow or thermal efficiency was not that good at all.

After a while the flat plate aluminuium ran very very hot (could not touch at all) but the heatsink was slowly heated up...I only felt warm when touch (I could touch for very long i.e. in minutes).

Is there any technique improve thermal efficiency or to make heat flows faster to the heatsink?

Will silicone in between help? What type of silicone?

Many Thanks,
  Reply With Quote
Old 1st February 2004, 01:19 AM   #2
diyAudio Member
 
Hybrid fourdoor's Avatar
 
Join Date: May 2003
Location: Ft. Worth, TX
That stuff they make for processors would probably help. I think like Silver Arctic or something like is the popular one.

Also make sure the two surfaces really are touching each other good. Inconsistencies in the two surfaces will cause a loss of conduction bewteen the two.
  Reply With Quote
Old 1st February 2004, 01:22 AM   #3
diyAudio Member
 
Alain Dupont's Avatar
 
Join Date: Sep 2003
Location: Paris - France
uangrit

?? Will silicone in between help? What type of silicone?

You can us Silicone Heat Transfer Compound

found it at Active 15cad $ for 5 Oz

Good luck.

Alain.
  Reply With Quote
Old 1st February 2004, 01:54 AM   #4
diyAudio Member
 
trigon's Avatar
 
Join Date: May 2002
Location: Canada
And plus you will have to level the heatsink to the point where no gap is left in-between your mounting block and heatsink. This is what I have had to do.


Trigon.
Attached Images
File Type: jpg sink.jpg (89.1 KB, 456 views)
  Reply With Quote
Old 1st February 2004, 03:29 PM   #5
diyAudio Member
 
Join Date: Jan 2003
Location: Bangkok
Thanks a lot...for all your suggestions.
  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
Heatsink for the Aleph 1.2 folkeb Pass Labs 1 23rd January 2006 03:27 AM
My aleph 2 heatsink MEGA_amp Pass Labs 12 30th January 2004 10:35 AM
Aleph 5 heatsink guesstimate? dantwomey Pass Labs 3 20th March 2003 08:34 AM
Aleph 2 heatsink thread Gabster Pass Labs 21 29th January 2003 08:44 PM
Aleph 3 heatsink question garnex Pass Labs 2 12th December 2002 06:12 PM


New To Site? Need Help?

All times are GMT. The time now is 02:46 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