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Old 31st October 2011, 04:50 PM   #1211
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Originally Posted by Nico Ras View Post
IN 4004/7 is fine.. You can easily mount it on the heat sink placing the two diodes under a suitable large washer and screwing them down on with a single screw. Use a little silicon grease to make a good thermal contact.
What I found 1n4004/7 are axial package, no TO-220 or similar package(flat surface), thus hard to mount on heatsink and difficult to transfer heatsink fully ?
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Old 31st October 2011, 04:59 PM   #1212
Bigun is offline Bigun  Canada
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I've used silicone glue to glue temperature sensing devices directly to the package of the power transistor. This glue is good for use at high temperatures and does not get brittle with age. No screws were necessary so it would probably work with any device package.
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Old 31st October 2011, 05:44 PM   #1213
Sheldon is offline Sheldon  United States
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Originally Posted by guitar89 View Post
If were to use diode, what diode are recommended ? (specs, type) Is this ok ? ON SEMICONDUCTOR|MBR1545CTG|DIODE, SCHOTTKY, 15A, 45V, TO | element14 Malaysia
No, you want a standard type diode, not schottky. Regular or fast recovery is fine. May not find those in flat package, so Nico's or Bigun's mounting suggestions might be easiest. I think the diode in the thermaltrak is equivalent to MUR120, so something with specs. similar to that will work.

Sheldon
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Old 31st October 2011, 11:29 PM   #1214
Salas is online now Salas  Greece
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Guys, does anybody know a source for THAT140 matched quad or similar? Such would sort out the SSA nicely I suppose. Can see BC847BPN on Mouser for dual but its diminutive to handle and don't state matched.
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Old 31st October 2011, 11:52 PM   #1215
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Old 31st October 2011, 11:57 PM   #1216
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Quote:
Originally Posted by Sheldon View Post
No, you want a standard type diode, not schottky. Regular or fast recovery is fine. May not find those in flat package, so Nico's or Bigun's mounting suggestions might be easiest. I think the diode in the thermaltrak is equivalent to MUR120, so something with specs. similar to that will work.

Sheldon
Well..... I don't like gluing things, and like to have full contact.(flat surface)
Anyway, if there is no flat surface for me, I have this thing, is it usable in here ?
http://docs-asia.electrocomponents.c...6b803a9cb4.pdf
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Old 1st November 2011, 12:05 AM   #1217
Salas is online now Salas  Greece
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Thanks J. Requested THAT340. Lets see what they respond.
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Old 1st November 2011, 12:08 AM   #1218
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I use That 1200. I got it fast and easy.
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Old 1st November 2011, 12:15 AM   #1219
Salas is online now Salas  Greece
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Did you check out 380G array also? Nice for your BJT phonos. Don't know how they package it though.
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Old 1st November 2011, 12:44 AM   #1220
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According LC schematic in this post :Simple Symetrical Amplifier
Here my interpretation from ThermalTrak SSA (need to be verify)

NJL are mounted underbord as driver (2SC2911/2SA1209).

What about choice between NJL3281/1302 and NJL4281/4302?

Marc
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File Type: jpg SSA_TT_brd.jpg (87.7 KB, 564 views)
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