IRF9610 & IRF610 temprature tolerance

vossie · 17th February 2003, 07:28 AM

Are you sitting down?

OK, now read further...

My case temprature on the PSU of my X-BOSOZ runs at around 85 degrees C when the case is closed (not much ventilation).

When the case is opened this cools down a bit. My heatsinks are fairly large (50mm X 60mm X 15mm) per mosfet and I don't want to add more.

I'm considering a fan - which I think of as too much mechanical motion / noise to help with ventilation.

On the other hand, I'm also considering the case if I do NOTHING!

I had a look at the specs of these on the datasheet and it seems within the temp range (corect me if I'm wrong). They being on the PSU I'm not too much worried about if the go - lots more where they came from.

What would be the opinion of the most learned?

Vossie

Henrik · 17th February 2003, 07:48 AM

Hi Vossie

The max. temp shoud be 50 degee C at the heatzink.
I know this is a problem, specially if you runs both channels from the same supply. If the mosfets shorts when blown, you might get a problem.
What about the heat at the other mosfets?

You can se what I did to keep the heat away here:
http://www.diyaudio.com/forums/showt...063#post102063

vossie · 17th February 2003, 08:18 AM

Thanks Henrik,

I use this X-BOSOZ (your schematic BTW!!) to feed my Aleph 30 gift from Mr Pass so I don't want any misshaps...

I'll don't have a aluminium bottom and I don't want to spoil the sides or back/front so I'll have to look at doing something then...

What do you make out from the data sheet of these mosfets - what is the max tempretures these can handle?

Vossie

SvErD · 17th February 2003, 08:30 AM

See this thread!

jh6you · 17th February 2003, 09:33 AM

Quote:

Originally posted by SvErD

See this thread!

?!?!

JH

SvErD · 17th February 2003, 11:06 AM

Sorry

BOSOZ's PSU runs very very hot

17th February 2003, 07:28 AM	#1
vossie diyAudio Member Join Date: Oct 2002 Location: Cape Town	IRF9610 & IRF610 temprature tolerance Are you sitting down? OK, now read further... My case temprature on the PSU of my X-BOSOZ runs at around 85 degrees C when the case is closed (not much ventilation). When the case is opened this cools down a bit. My heatsinks are fairly large (50mm X 60mm X 15mm) per mosfet and I don't want to add more. I'm considering a fan - which I think of as too much mechanical motion / noise to help with ventilation. On the other hand, I'm also considering the case if I do NOTHING! I had a look at the specs of these on the datasheet and it seems within the temp range (corect me if I'm wrong). They being on the PSU I'm not too much worried about if the go - lots more where they came from. What would be the opinion of the most learned? Vossie __________________ The brave might not live forever but the cautious never live at all!

17th February 2003, 07:48 AM	#2
Henrik diyAudio Member Join Date: Feb 2002 Location: Copenhagen Denmark	Hi Vossie The max. temp shoud be 50 degee C at the heatzink. I know this is a problem, specially if you runs both channels from the same supply. If the mosfets shorts when blown, you might get a problem. What about the heat at the other mosfets? You can se what I did to keep the heat away here: http://www.diyaudio.com/forums/showt...063#post102063 __________________ Henrik

17th February 2003, 08:18 AM	#3
vossie diyAudio Member Join Date: Oct 2002 Location: Cape Town	Thanks Henrik, I use this X-BOSOZ (your schematic BTW!!) to feed my Aleph 30 gift from Mr Pass so I don't want any misshaps... I'll don't have a aluminium bottom and I don't want to spoil the sides or back/front so I'll have to look at doing something then... What do you make out from the data sheet of these mosfets - what is the max tempretures these can handle? Vossie __________________ The brave might not live forever but the cautious never live at all!

17th February 2003, 08:30 AM	#4
SvErD diyAudio Member Join Date: Jan 2002 Location: Norway	See this thread! __________________ I don't suffer from insanity, I enjoy every minute of it!

17th February 2003, 11:06 AM	#6
SvErD diyAudio Member Join Date: Jan 2002 Location: Norway	Sorry BOSOZ's PSU runs very very hot __________________ I don't suffer from insanity, I enjoy every minute of it!


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