bokbaard
New Member
Chaps,
I have found a problem with my heatsink recently, and fixing this problem, introduced another
I am using two NPN's as pass transistors on a heatsink, which is fine, as the collectors are tied together anyway.
My problem is, I need to insulate the heatsink from the chassis, electrically and I need ideas.
I can always revert to mica insulators under each transistor, to isolate them from the heatsink, which should be ok then, but I am not sure.
I have read a piece on mica insulation, and heard that they retard the thermal transfer.
What are you ideas/opinions on using paste+mica washers?
Should I use the above mentioned solution instead of trying to electrically insulating the heatsink from the chassis?
Thanks and regards
MarloN
I have found a problem with my heatsink recently, and fixing this problem, introduced another
I am using two NPN's as pass transistors on a heatsink, which is fine, as the collectors are tied together anyway.
My problem is, I need to insulate the heatsink from the chassis, electrically and I need ideas.
I can always revert to mica insulators under each transistor, to isolate them from the heatsink, which should be ok then, but I am not sure.
I have read a piece on mica insulation, and heard that they retard the thermal transfer.
What are you ideas/opinions on using paste+mica washers?
Should I use the above mentioned solution instead of trying to electrically insulating the heatsink from the chassis?
Thanks and regards
MarloN