[TechAssist] Re: Heat sink compound
- From: "J Silverman" <greentron@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 9 Oct 2004 15:30:19 -0400
Well, you have to learn the language of whoever has the upper hand, because
they say "why should they bother? You dont have any choice in the matter.".
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
Fax/Phone 864 232 3889
mail to: greentron@xxxxxxx
----- Original Message -----
From: "Edward Gaidies" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, October 08, 2004 8:34 PM
Subject: [TechAssist] Re: Heat sink compound
> As far as I'm concerned..it's a No Brainer.
> I don't need a degree in Science..I don't even know how this discussion
> has gotten this far.
> Just realize..if the heatsink is hot...the component is hotter, and
> probably doing what it was designed for.
> Keep in mind...most Power Devices run at 165 to 180 C.
> Now that Celsius.
> As long as the heat is dissipated, Good to go.
> Try mounting a STR or STK...before you complete the job, and secure
> those screws, put your finger between the component and the Heat sink,
> and if you prefer, butter your finger with that Heat Sink compound. You
> will see how hot it is.
> NTE has Min/Max recommended temps for their components..because of
> simplicity, I connect my Temp. probe to the Heat sink. I don't care
> what the actual temperature is of the component, but I want to check
> rate of rise.
> While were on this subject..Toshiba recommends not using too much
> compound (any type) as per recent discussions on Heat Sink Compounds.
> More is not better. I use GC in a tube. Last one... lasted me 6 years.
> It's the white stuff and looks messy, but it works.
>
> Things change in Electronics, some of the old stuff won't.
>
> If this subject started because of component (Solid State) are running
> too hot, we have gone through the gambit of adding extra Heat sinks to
> our old Emersons (26"), we all know it was a "Work Around", and
> according to ex-Emerson Technicians, a badly designed chassis.
>
> Expect to do many workarounds with the Chinese stuff coming in..;-)
> Trouble is...Chassis and Design seem to change every 6 months.
>
> BTW..I'm working on a Memorex 20" (Dead).
> Pulled out the regulator, which was shorted...and this is a first for
> me...Marking on the Transistor is in Chinese writing....My NTE won't
> let me do a searh in something that looks like a house with a crooked
> roof, if I even knew how to enter it.;-)
>
>
>
> Taiwan is sitting there laughing their Axx off.
>
>
>
> -Ed-
> *****************************************************************
> Ed Gaidies
> Tel-Tek Electronics
> Ontario-Canada
> teltek3@xxxxxxxxxxxx
> teltek@xxxxxxxxx
>
> On 8-Oct-04, at 5:42 PM, Gary McCartney wrote:
>
> > Yes, if you place a temperature probe just above the component you'll
> > notice that it is hotter than farther away on the heatsink.
> >
> >
> >
> >
> > Gary McCartney
> >
> > McCartney Electronics
> > Guelph Ontario Canada
> > Est. 1984
> > email: gary (at) number63.ca
> >
> >
> >
> >
> >
> >
> >
> >
> > Edward Gaidies wrote:
> >> Short of going into theory...trust me...the heat on the heat sink has
> >> to come from a source, The heat sink will hold the heat longer then
> >> the
> >> source, due to it's size, but the heat transfer plate on the solid
> >> state component will always be a few degrees hotter.
> >>
> >> -Ed-
> >> *****************************************************************
> >> Ed Gaidies
> >> Tel-Tek Electronics
> >> Ontario-Canada
> >> teltek3@xxxxxxxxxxxx
> >> teltek@xxxxxxxxx
> >>
> >> On 8-Oct-04, at 4:56 PM, Kevin wrote:
> >>
> >>
> >>> I have touched heat sinks that are hotter than the semiconductor that
> >>> they are attached to. Maybe the back of the semi is hotter, but of
> >>> course I can't test that theory.
> >>>
> >>> Kevin Wilks
> >>> Kevin's TV & Video Repair
> >>> Penticton BC Canada
> >>> kevintv@xxxxxxx
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: techassist-bounce@xxxxxxxxxxxxx
> >>> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Tel-Tek
> >>> Electronics
> >>> Sent: Friday, October 08, 2004 1:23 PM
> >>> To: techassist@xxxxxxxxxxxxx
> >>> Subject: [TechAssist] Re: Heat sink compound
> >>>
> >>> Bil...
> >>> Now you know better then that.
> >>> Basic Science.;-)
> >>> That would be Thermal Energy in reverse. The source has to be more
> >>> then
> >>> the dissipation.
> >>>
> >>> Ask Wayne.;-)
> >>>
> >>> -Ed-
> >>>
> >>> Tel-Tek Electronics
> >>> Ontario-Canada
> >>>
> >>> teltek3@xxxxxxxxxxxx
> >>> teltek@xxxxxxxxx
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: techassist-bounce@xxxxxxxxxxxxx
> >>> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Bil Green
> >>> Sent: Friday, October 08, 2004 3:57 PM
> >>> To: J Silverman
> >>> Subject: [TechAssist] Re: Heat sink compound
> >>>
> >>> Isn't the heat sink always hotter than the device? Heat rises and is
> >>> stored by the heat sink.
> >>>
> >>>
> >>> Bil Green
> >>> PC 1000
> >>> Mammoth Lakes, CA 93546
> >>> 760-924-1000
> >>>
> >>> Friday, October 8, 2004, 9:50:46 AM, you wrote:
> >>>
> >>> JS> So it sucks so much heat out that the heat sink is hotter than
> >>> the
> >>> devices
> >>> JS> doing the heating? Patent it quick!
> >>> JS> Jerry Silverman
> >>> JS> Greentron Inc
> >>> JS> 4 Newland Ave
> >>> JS> Greenville SC 29609
> >>> JS> Fax/Phone 864 232 3889
> >>> JS> mail to: greentron@xxxxxxx
> >>> JS> ----- Original Message -----
> >>> JS> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
> >>> JS> To: "Paul" <techassist@xxxxxxxxxxxxx>
> >>> JS> Sent: Thursday, October 07, 2004 4:46 PM
> >>> JS> Subject: [TechAssist] Re: Heat sink compound
> >>>
> >>>
> >>>
> >>>>> I have been using silicone grease. It's available in a tube, used
> >>>>> for
> >>>>> servicing pools and hot tubs, also boats. Designed for high heat
> >>>>> applications. Has worked well for many years (and it's clear).
> >>>>>
> >>>>> The heat sinks get much hotter than the transistors and chips so I
> >>>>> know for sure that it's working.
> >>>>>
> >>>>>
> >>>>> Bil Green
> >>>>> PC 1000
> >>>>> Mammoth Lakes, CA 93546
> >>>>> 760-924-1000
> >>>>>
> >>>>> Thursday, October 7, 2004, 10:10:38 AM, you wrote:
> >>>>>
> >>>>> P> Hi Al, been using GC silicone 10-8101 for about 20 years. Never
> >>>
> >>> had a
> >>> JS> repeat failure due to its use. I like it because it is less messy
> >>> than the
> >>> JS> white or pink stuff the mfgs use.
> >>>
> >>>>> P>
> >>>
> >>> JS> Paul
> >>>
> >>>>> P> al m <ampm@xxxxxxx> wrote:
> >>>>> P> I know it's off topic but I haven't thought of what I was buying
> >>>
> >>> JS> before.
> >>>
> >>>>> P> Which is better the non silicone or the silicone compound?
> >>>>> P> Al Marquardt
> >>>>> P> ampm@xxxxxxx
> >>>>> P> Al Marquardt Electronic Repair
> >>>>> P> 206 W Main
> >>>>> P> Girardville Pa. 17935
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>
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