BOSOZ assembly question

moe29 · 9th February 2003, 04:48 AM

i'm stuffing my BOSOZ boards, and wanted to make sure that
when attaching the mosfets to their heat sinks a mica insulator
should NOT be used? we want to keep the TO-220 case and the
heat sink electically live not isolated. right?

thanks in advance

m.

jh6you · 9th February 2003, 05:11 AM

I would just put the insulator on as the back side metal of the
mosfet is a conductor to the drain.

JH

Not to worry about the rain, I always carry my umbrella.

ElectroNick · 9th February 2003, 12:59 PM

Hi Moe,

I did isolate the heatsink and the TO-220 case. I've tried to make a drawing of it. I aslo cut off the middle pin of the mosfet because it has no use on the PCB and can only function as an antenna.
Hopefully its clear enough.

Suxes with your project

Gr
Nick

moe29 · 9th February 2003, 09:07 PM

...now comes the hard part

9th February 2003, 04:48 AM	#1
moe29 diyAudio Member Join Date: Dec 2002 Location: Florida	BOSOZ assembly question i'm stuffing my BOSOZ boards, and wanted to make sure that when attaching the mosfets to their heat sinks a mica insulator should NOT be used? we want to keep the TO-220 case and the heat sink electically live not isolated. right? thanks in advance m.

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9th February 2003, 05:11 AM	#2
jh6you Account Disabled Join Date: Aug 2002 Location: Near to the Pacific Ocean	I would just put the insulator on as the back side metal of the mosfet is a conductor to the drain. JH Not to worry about the rain, I always carry my umbrella.

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