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Old 14th March 2012, 06:09 PM   #1031
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I also like fat traces and big pads but I also like compact boards.
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Old 14th March 2012, 06:47 PM   #1032
labjr is offline labjr  United States
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Originally Posted by UKToecutter View Post
I also like fat traces and big pads but I also like compact boards.
I don't see the need to have a crowded board if it isn't neccessary.
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Old 14th March 2012, 07:00 PM   #1033
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I don't see the need to have a crowded board if it isn't neccessary.
Especialy when things get hot
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Old 14th March 2012, 07:17 PM   #1034
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Alternative would be to gang-shabang for 10R in TO-126.
Means switching positons of R5/R6 and the testpoints, to make room for a heatsink.

(Caddock MP915 for under $2 or Bourns PWR221T at $1.35, for 100 up)
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Old 14th March 2012, 07:53 PM   #1035
a.wayne is offline a.wayne  United States
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I like them Phat too, does get hot .......
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Old 14th March 2012, 08:00 PM   #1036
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I don't see the need to have a crowded board if it isn't neccessary.
Fair enough.
They're not crowded at the moment anyway.
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Old 14th March 2012, 08:01 PM   #1037
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Quote:
Originally Posted by jacco vermeulen View Post
Alternative would be to gang-shabang for 10R in TO-126.
Means switching positons of R5/R6 and the testpoints, to make room for a heatsink.

(Caddock MP915 for under $2 or Bourns PWR221T at $1.35, for 100 up)
Jacco,

What are the pin spacings for those?
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Old 14th March 2012, 08:53 PM   #1038
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Jacco,

Found the datasheets for both models.
They are both 5.08mm spacing so are already catered for on the boards.

:-)
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Old 14th March 2012, 09:01 PM   #1039
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Me knew that before i typed.
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Old 15th March 2012, 07:58 AM   #1040
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Heat sinks for rectifiers are big enough? In my F4s 8 Hexfreds heat up a black anodized 300mm x 300mm x 6mm aluminum ground plate to almost 60°C (after a day or so).

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