Hi Berndt,<div><br></div><div><font face="arial, helvetica, sans-serif">Element14 / Farnell have some small adhesive pads that are quite cheap.</font></div><div><font face="arial, helvetica, sans-serif">e.g. order code 1211706, "</font><span style="font-family:arial,helvetica,sans-serif;color:rgb(85,85,85);line-height:14px">FISCHER ELEKTRONIK - WLFT 404 14X14 - THERMALLY </span><span style="font-family:arial,helvetica,sans-serif;color:rgb(85,85,85);line-height:14px">CONDUCTIVE FOIL, ADHESIVE</span><span style="font-family:arial,helvetica,sans-serif">" @ £0.44 each.</span></div>
<div><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div><span style="font-family:arial,helvetica,sans-serif">I wonder which other ICs get hot?</span></div><div><font face="arial, helvetica, sans-serif">Gigabit PHYs usually run quite hot, not sure about the one used on Hermes?</font></div>
<div><br></div><div><span style="font-family:arial,helvetica,sans-serif">BR, Ian.</span></div><div><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div><br><div class="gmail_quote">On 16 August 2012 12:47, Berndt Josef Wulf <span dir="ltr"><<a href="mailto:wulf@ping.net.au" target="_blank">wulf@ping.net.au</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">***** High Performance Software Defined Radio Discussion List *****<br>
<br>
G'day Kjell,<br>
<br>
Understood. I've an account with element14 and they stock the heat sink:<br>
<br>
4306557 FISCHER ELEKTRONIK - ICK SMD E 15 SA $6.99<br>
<br>
However, thermal tape and adhesives are not cheap:<br>
<br>
1211723 FISCHER ELEKTRONIK - WLK 5 - ADHESIVE, THERMAL CONDUCTIVE $46.77<br>
1841554 ELECTROLUBE - TBS20S - ADHESIVE, THERMAL BONDING, 2 PART $19.73<br>
<br>
An alternative may be a copper forged 14mmx14mm BGA heatsink with a 3M<br>
8815 adhesive tape<br>
<br>
<a href="http://www.ebay.com/itm/Enzotech-BCC9-BMR-C1L-Low-Profile-Copper-BGA-Heatsink-/330701170645?pt=US_Memory_Chipset_Cooling&hash=item4cff5367d5" target="_blank">http://www.ebay.com/itm/Enzotech-BCC9-BMR-C1L-Low-Profile-Copper-BGA-Heatsink-/330701170645?pt=US_Memory_Chipset_Cooling&hash=item4cff5367d5</a><br>
<br>
It is 9mm in height, 1mm taller than the Fischer heatsink, but I can't<br>
see any reasons why it couldn't be trimmed down if required. This is a<br>
pack of 8 heatsinks @ $14.95.<br>
<br>
<br>
Thanks,<br>
<br>
73, Berndt<br>
VK5ABN<br>
<br>
On Thu, 2012-08-16 at 12:51 +0200, Kjell Karlsen wrote:<br>
> Hi Berndt.<br>
><br>
> I am sorry but I can not find the PN. The one I use is made by 3M but<br>
> nothing is marked on the roll. When I do a Goggle search I find type 8805<br>
> pressure sensitive tape, this is probably the one I have. It is 5 mils<br>
> (0,125 mm)tick. Several suppliers comes up on the search list.<br>
><br>
> 73, Kjell<br>
><br>
><br>
><br>
> På Thu, 16 Aug 2012 10:39:38 +0200, skrev Berndt Josef Wulf<br>
> <<a href="mailto:wulf@ping.net.au">wulf@ping.net.au</a>>:<br>
><br>
> > G'day Kjell,<br>
> ><br>
> > Can you tell us the a part number and supplier for the thermal adhesive<br>
> > you used?<br>
> ><br>
> > 73, Berndt<br>
> > VK5ABN<br>
> ><br>
> > On Thu, 2012-08-16 at 09:50 +0200, Kjell Karlsen wrote:<br>
> >> ***** High Performance Software Defined Radio Discussion List *****<br>
> >><br>
> >> Hi Frank.<br>
> >><br>
> >> When Hermes PCB was constructed, it was designed to be installed both<br>
> >> ways. For use with Apollo in the Hammond enclosure (1455Q1601) Apollo is<br>
> >> mounted on the bottom for cooling of the PA transistors and Hermes is<br>
> >> installed on top with the components facing up. The interface cables are<br>
> >> connected to the bottom of Hermes (TX out, RX in, Power in and SPI).<br>
> >><br>
> >> For use with Abhi´s 15 W PA, Hermes is installed on top with the<br>
> >> components facing down. There are provisions for interface connectors on<br>
> >> the component side of Hermes for this use. Remember that the SPI<br>
> >> connector<br>
> >> on top is different from the SPI on bottom (imaged)!<br>
> >><br>
> >> For better cooling of the ADC, I am using a small Heat Sink (Fisher PN:<br>
> >> ICK SMD E 15 SA or equivalent) fastened to the top of the ADC using dual<br>
> >> sided heat transfer tape or glue. This seems to be sufficient for<br>
> >> cooling<br>
> >> even with 7 receivers running. I hope Phil can confirm this?<br>
> >><br>
> >> 73, Kjell<br>
> >><br>
> >><br>
> >><br>
> >><br>
> >><br>
> >><br>
> >><br>
> >> På Wed, 15 Aug 2012 23:56:47 +0200, skrev FRANCIS CARCIA<br>
> >> <<a href="mailto:carcia@sbcglobal.net">carcia@sbcglobal.net</a>>:<br>
> >><br>
> >> > ***** High Performance Software Defined Radio Discussion List *****<br>
> >> ><br>
> >><br>
> >><br>
> ><br>
> ><br>
> ><br>
><br>
><br>
<br>
<br>
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