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bipolar (bjt) transistor families for audio power output stages
bipolar (bjt) transistor families for audio power output stages
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Old 27th February 2019, 07:12 AM   #841
tiefbassuebertr is offline tiefbassuebertr  Germany
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Join Date: Jul 2005
Location: D-55629 Schwarzerden
Quote:
Originally Posted by burbeck View Post
hi
and they have a German office
Tel: +49 3222 109 1464
Email: ce@profusionplc.com
since I order SANKEN's BjT power devices under
Sanken audio components at Profusion
no longer issues by repair on power amplifier are to observe.

Now I am looking for a supplier in the same kind, but from Toshiba parts, particularly for the often used and often faked 2SA1943/2SC5200 - go to the last images under
Sony N80es,E80es recapping.: Sony TA-N80es & TA- E80es recapping project
Sony N80es,E80es recapping.
I don't think, that e. g. the supplier under
2SA1943 2SC5200 TOSHIBA High Power Audio Transistor,x10 6921407396296 | eBay
exacltly know, if this parts really are genuine Toshiba parts.

Thanks for advices.

Last edited by tiefbassuebertr; 27th February 2019 at 07:19 AM.
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Old 27th February 2019, 08:33 AM   #842
Terry Demol is offline Terry Demol  Australia
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Quote:
Originally Posted by tiefbassuebertr View Post
since I order SANKEN's BjT power devices under
Sanken audio components at Profusion
no longer issues by repair on power amplifier are to observe.

Now I am looking for a supplier in the same kind, but from Toshiba parts, particularly for the often used and often faked 2SA1943/2SC5200 - go to the last images under
Sony N80es,E80es recapping.: Sony TA-N80es & TA- E80es recapping project
Sony N80es,E80es recapping.
I don't think, that e. g. the supplier under
2SA1943 2SC5200 TOSHIBA High Power Audio Transistor,x10 6921407396296 | eBay
exacltly know, if this parts really are genuine Toshiba parts.

Thanks for advices.
Tief,

Try FJL4215 and FJL4315 from Mouser

FJL4315OTU ON Semiconductor / Fairchild | Mouser Australia

I would not buy any power semi's from ebay / China

cheers

T
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Old 22nd May 2019, 01:40 AM   #843
tiefbassuebertr is offline tiefbassuebertr  Germany
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Default Sanken's LAPT in MT200 outline discontinued

check out this threads:
SanKen ending production of most / all MT-200 transistors... | Page 2 | Audiokarma Home Audio Stereo Discussion Forums
Sanken MT-200 End of Life

The internal dies are also used on the MT100 outline.
But what about the thermal resistance ?
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Old 22nd May 2019, 06:30 AM   #844
sajti is online now sajti  Hungary
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Location: Százhalombatta, Hungary
Quote:
Originally Posted by tiefbassuebertr View Post
The internal dies are also used on the MT100 outline. But what about the thermal resistance ?
Just use 2 pairs of 2SC6145/2SA2223 instead of one pair of 2SC2922/2SC1216.
D'Agostino knows the solution

Click the image to open in full size.

Sajti
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Old 23rd May 2019, 01:39 AM   #845
wg_ski is offline wg_ski  United States
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Of course it is the solution for a new amplifier. The problem is repairing 80’s and 90’s amps. Anything you do will be a kluge. I suspect that respected repair folks have stockpiles that they’ll never let go of, except to do repairs for clients who pay good money for it. If I was legitimately in that business, I would have bought 200 NPN and PNP as soon as the EOL notices went out.
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