Heat dissipation on a F5 - 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
Thread Tools Search this Thread
Old 30th July 2015, 02:03 PM   #1
diyAudio Member
Join Date: Aug 2009
Default Heat dissipation on a F5

Hi guy's , on my F5 project while i'm waiting for my heatsinks it came to
mind what kind of material beside siliconpaste i should use for best result
between the IRFP240/9240 and heatsinks ?
what i have in my bins are , silicon rubber pads , mica's and thicker ceramic-
ones that are almost 1mm thick which i belive is best but i'm not really sure
so any kind of information is appreciated,

Regards from Sweden.

Last edited by tjolle62; 30th July 2015 at 02:07 PM.
  Reply With Quote
Old 30th July 2015, 04:46 PM   #2
6L6 is offline 6L6  United States
diyAudio Member
6L6's Avatar
Join Date: Oct 2010
Location: Denver, Colorado
Mica and paste is very good. You can't go wrong with that.

Some silicon pads are also excellent, some are not. It has to do with the specification they were designed to. Generally the pink ones are better for this application than the grey.
  Reply With Quote
Old 30th July 2015, 04:59 PM   #3
diyAudio Member
Join Date: Aug 2009
Agree on mica's and a good paste in moderation couse that served our Hi-Fi world before my entry on this planet....
Those ceramic ones i got are rated 0.528W/mC @ 75 and 1 mm thick and white.
  Reply With Quote
Old 30th July 2015, 05:40 PM   #4
AndrewT is offline AndrewT  Scotland
diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
1thou/1mil/0.025mm thick mica is good as an electrical insulator.
2thou thick mica is not as good.
Some mica is thicker than 6thou. Don't use them as thermal conductor sheets.
1.6mm thick aluminium oxide is not as good
But 1mm thick may be as good as 1thou mica but there is a risk of this thin alox cracking when you tighten the clamping system.
regards Andrew T.
Sent from my desktop computer using a keyboard
  Reply With Quote
Old 30th July 2015, 05:52 PM   #5
diyAudio Member
Join Date: Aug 2009
So with almost everything else is good and bad things , looked in my bin with coolingstuff
and i had old fashion mica sheets in specified thickness so i gonna use those and some good thermal paste with that and i have white , grey , silver and gold paste so problem is solved i hope,
Thnx for your advice AndrewT.
  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
heat dissipation method Project16 Construction Tips 14 18th February 2013 04:32 AM
Multiple transistor heat dissipation. Boscoe Solid State 3 22nd November 2011 11:11 PM
CLC Question - Heat Dissipation TwangBar Pass Labs 2 2nd February 2005 09:01 PM
Heat dissipation from 3875 soundNERD Chip Amps 3 19th January 2005 02:03 AM
Heat dissipation Magura Pass Labs 26 15th November 2003 01:00 PM

New To Site? Need Help?

All times are GMT. The time now is 02:51 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2