do I need to use a heatsink on a DN2540 in a B+ supply? - diyAudio
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Old 28th September 2006, 04:51 AM   #1
jarthel is offline jarthel  Australia
diyAudio Member
Join Date: Jan 2002
Location: somewhere in Australia
Default do I need to use a heatsink on a DN2540 in a B+ supply?

I was thinking of using CCS (using dn2540) but I'm wondering if I need to use a heatsink?

thank you.
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Old 28th September 2006, 06:42 AM   #2
diyAudio Member
Join Date: Mar 2003
Location: Zürich
Hi Jarthel

What will the dissipation be? You can have a rough estimation by multiplying the voltage across the DN2540 with the current through it. If it is more than some 0.5W I would put a heatsink? TAKE CARE with proper electical isolation between the body of the DN and the heatsink if the body of the DN is not isolated itself.

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