Salas hotrodded blue DCB1 build - Page 208

boywonder · 2nd August 2012, 04:25 PM

got it, thanks......assuming you mean swap the inner/outer positions for each pair.

Salas · 2nd August 2012, 04:36 PM

Yep.

mjock3 · 4th August 2012, 02:58 PM

Would a heat sink rated at 1.3 C/W 11mmx61mmx35mm be enough on each side for a 600ma hot rod?

Thanks

pinnocchio · 4th August 2012, 03:03 PM

Quote:

Originally Posted by mjock3

Would a heat sink rated at 1.3 C/W 11mmx61mmx35mm be enough on each side for a 600ma hot rod?

Thanks

I think you will see fire and explosions of the mosfets

Salas · 4th August 2012, 03:04 PM

He probably meant cm.

mjock3 · 4th August 2012, 03:05 PM

How do I go about figuring out what I need. I don't understand what to look for.

mjock3 · 4th August 2012, 03:06 PM

I meant 116mmx61x35

Salas · 4th August 2012, 03:08 PM

W/C is the key. 1.3W/C when receiving 12W heat per rail assuming 10V across each Mosfet @ 0.6A they gonna rise 15.6C above box's ambient.

Salas · 4th August 2012, 03:10 PM

If your box is roomy, ventilated, even with 40C inside you are safe at under 60C on the fins.

mjock3 · 4th August 2012, 03:21 PM

Thanks Salas

4th August 2012, 02:58 PM	#2073
mjock3 diyAudio Member Join Date: Jan 2011 Location: Wisconsin	heat sink Would a heat sink rated at 1.3 C/W 11mmx61mmx35mm be enough on each side for a 600ma hot rod? Thanks

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2nd August 2012, 04:25 PM	#2071
boywonder diyAudio Member Join Date: Jan 2008 Location: So.Cal.	got it, thanks......assuming you mean swap the inner/outer positions for each pair.

2nd August 2012, 04:36 PM	#2072
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Yep.

4th August 2012, 03:04 PM	#2075
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	He probably meant cm.

4th August 2012, 03:05 PM	#2076
mjock3 diyAudio Member Join Date: Jan 2011 Location: Wisconsin	How do I go about figuring out what I need. I don't understand what to look for.

4th August 2012, 03:06 PM	#2077
mjock3 diyAudio Member Join Date: Jan 2011 Location: Wisconsin	I meant 116mmx61x35

4th August 2012, 03:08 PM	#2078
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	W/C is the key. 1.3W/C when receiving 12W heat per rail assuming 10V across each Mosfet @ 0.6A they gonna rise 15.6C above box's ambient.

4th August 2012, 03:10 PM	#2079
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	If your box is roomy, ventilated, even with 40C inside you are safe at under 60C on the fins.

4th August 2012, 03:21 PM	#2080
mjock3 diyAudio Member Join Date: Jan 2011 Location: Wisconsin	Thanks Salas