heatsinks

rol1 · 23rd August 2001, 10:43 PM

Would these work in audio apps?

http://1coolpc.com/3100g1.htm

Freddie · 24th August 2001, 08:42 AM

Well, it could work depending on how much cooling you need.
This seems to be made for cooling CPUs, and it comes with a fan. When it is running at 12V the thermal resistance is 0,28°C/W, which means that the temperture rise is about 0,28° * 100W = 28°C when dissipating 100W into the heatsink. With an ambient temperature of 25°C the heatsink temperature will be 28°C + 25°C = 53° probably a little higher, though.

But this uses a fan too help cooling the heatsink, which I hate because it's always so noisy. And there seems to be very little space for mounting the power transistors. And don't you think it's very ugly? I do.

I would definity look for another heatsink, a normal one if you are planning to use it with an amp.

Check for example
http://www.fischerelektronik.de

[Edited by Freddie on 08-24-2001 at 03:48 AM]

Fyhr · 24th August 2001, 06:54 PM

indeed it is made for cpu cooling, with a fan. and from reviews i've read about it (as a cpu heatsink) it sucks...
but i think it is kinda pretty.. not on an amp.. but on a cpu

24th August 2001, 08:42 AM	#2
Freddie diyAudio Member Join Date: Oct 2000 Location: Sweden	This was one ugly heatsink! Well, it could work depending on how much cooling you need. This seems to be made for cooling CPUs, and it comes with a fan. When it is running at 12V the thermal resistance is 0,28°C/W, which means that the temperture rise is about 0,28° * 100W = 28°C when dissipating 100W into the heatsink. With an ambient temperature of 25°C the heatsink temperature will be 28°C + 25°C = 53° probably a little higher, though. But this uses a fan too help cooling the heatsink, which I hate because it's always so noisy. And there seems to be very little space for mounting the power transistors. And don't you think it's very ugly? I do. I would definity look for another heatsink, a normal one if you are planning to use it with an amp. Check for example http://www.fischerelektronik.de [Edited by Freddie on 08-24-2001 at 03:48 AM]

24th August 2001, 06:54 PM	#3
Fyhr diyAudio Member Join Date: Jul 2001 Location: Lund, Sweden	indeed it is made for cpu cooling indeed it is made for cpu cooling, with a fan. and from reviews i've read about it (as a cpu heatsink) it sucks... but i think it is kinda pretty.. not on an amp.. but on a cpu __________________ Pontus Fyhr

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23rd August 2001, 10:43 PM	#1
rol1 diyAudio Member Join Date: May 2001	Would these work in audio apps? http://1coolpc.com/3100g1.htm