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Thermal solutions for car amps
Thermal solutions for car amps
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Old 15th January 2019, 12:53 PM   #1
Cartel is offline Cartel
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Thermal solutions for car amps
Question Thermal solutions for car amps

What are people using for amp rework?

Where can you get mica rectangles of 46mm x 25mm?

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Would SilPad K10 be good enough? Is Sil-PadŽ 900-S better?

What about this stuff, is it a kapton tape?

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Would this kapton tape be a great solution?

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Last edited by Cartel; 15th January 2019 at 01:02 PM.
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Old 15th January 2019, 01:12 PM   #2
Perry Babin is offline Perry Babin  United States
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Mica is very good. Why not reuse them?

You can buy them from virtually any electronics distributor.

The used kapton that you posted is Kapton MT and is very good. The roll of tape is Kapton HN and while it's OK for power supply FETs and most class D output FETs, it's marginal for the outputs in a class B or AB amplifier.
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Old 15th January 2019, 01:51 PM   #3
Cartel is offline Cartel
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Thermal solutions for car amps
Quote:
Originally Posted by Perry Babin View Post

The used kapton that you posted is Kapton MT and is very good. The roll of tape is Kapton HN and while it's OK for power supply FETs and most class D output FETs, it's marginal for the outputs in a class B or AB amplifier.

awesome, thanks.

Quote:
Originally Posted by Perry Babin View Post
Mica is very good. Why not reuse them?

You can buy them from virtually any electronics distributor.
I see the ones with holes, it would be nice to have the 46mm x 25mm the used to cover 2 tip packages at once.
The originals where splintering and I got impatient and tossed them.

Last edited by Cartel; 15th January 2019 at 01:55 PM.
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Old 17th January 2019, 08:55 PM   #4
Cartel is offline Cartel
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Thermal solutions for car amps
I'm going to request a sample of Kapton MT+
What "mil" should I use?

thanks
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Old 17th January 2019, 11:28 PM   #5
Perry Babin is offline Perry Babin  United States
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2 mil is what I've always used (because that's what's been available).
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Old 18th January 2019, 12:05 AM   #6
Cartel is offline Cartel
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Thermal solutions for car amps
Quote:
Originally Posted by Perry Babin View Post
2 mil is what I've always used (because that's what's been available).
thanks!

I requested 1, 1.5 and 2
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Old 18th January 2019, 07:58 PM   #7
Cartel is offline Cartel
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Thermal solutions for car amps
any suggestions here?
Just reuse it?

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Old 19th January 2019, 12:06 AM   #8
Perry Babin is offline Perry Babin  United States
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It's 'probably' OK but I'd likely replace it. Something like the mcmaster 1466N12 would be good if there is enough clearance for it (there should be). That's the part number for 1/2" tape. You may need 3/4 or 1"/
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Old 19th January 2019, 01:39 AM   #9
Cartel is offline Cartel
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Thermal solutions for car amps
McMaster-Carr

Those cardboard strips are 3/4" so I guess I need that.
That should work, thank you.
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Old 19th January 2019, 02:41 AM   #10
Cartel is offline Cartel
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Thermal solutions for car amps
Quote:
Originally Posted by Cartel View Post
McMaster-Carr

Those cardboard strips are 3/4" so I guess I need that.
That should work, thank you.
Maybe I should get this too for the to220's
McMaster-Carr
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