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Old 27th October 2003, 10:58 PM   #1
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Default Help-Replacement part for 2sc4793

Can anyone help me on finding the On-Semi replacement part for Toshiba 2sc4793? It's not easy to find 2sc4793 in the US. Thank you.
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Old 27th October 2003, 11:12 PM   #2
Vigier is offline Vigier  Netherlands
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Hi,

as fas as I know, the 2SC2238 is a good replacement (the 2SC2238 is more common, especially in combination with the 2SA968)

Grtz, Joris

Recitification: P.S. Woops, I didn't read it very well, you want an on-semi equivalent... I don't know one
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Old 27th October 2003, 11:27 PM   #3
Vigier is offline Vigier  Netherlands
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Hi again,

I've been searching the tables of ON-Semiconductor, using the datasheet of the 2SC4793:
http://www.bmm-electronics.nl/docume...ba/2sc4793.pdf, but I couldn't find a match!
Sorry!

Grtz, Joris
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Old 29th October 2003, 11:07 AM   #4
Praise! is offline Praise!  Australia
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Smile I have

I have some 2SC4793. If you want 1 or 2, I can give them/it
to you. If you need more than 3, I'll have to charge you for that.
Just tell me your address by private-emailing to me. Praise! be
to the LORD!

James Yung
Praise! Audio
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Old 29th October 2003, 11:18 AM   #5
Praise! is offline Praise!  Australia
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Lightbulb alternatives

If you are using 2SC4793/2SA1837 as drivers, you have
some alternatives: 2SC5171 / 2SA1930 also from Toshiba.
I like them better because they have high and symmetrical
fT = 200 MegaHertz compared to lower and asymmetrical
fT = 100 / 70 MegaHertz. I have them as well in 2 months
depending on factory schedule. Log on to Toshiba
semiconductors for data sheets.
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Old 30th October 2003, 01:12 AM   #6
AKSA is offline AKSA  Australia
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Acliao,

You can use the MJE15030 from OnSemi in place of the 2SC4793. The complement of this device is the MJE15031. It's pin for pin replacement.

These devices have four times the current rating, appreciably more dissipation as well, and are rated at 30MHz. This is not so fast as the 4793/1837, but in practice, and particularly on an audio amplifier, you won't notice the difference as the emitter follower is intrinsically a very fast configuration; the slowest device on an audio amplifier is, by design, the voltage amplifier.

Cheers,

Hugh
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Old 4th November 2003, 02:58 AM   #7
mirlo is offline mirlo  United States
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Default 2SC4793 is at Digikey

I believe you can easily get 2SC4793 from Digikey in the US.

http://www.digikey.com

-- mirlo
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Old 17th December 2010, 05:53 PM   #8
yahoo is offline yahoo  Jamaica
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the qsc c3298 compliment a1306 will work perfectly
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Old 17th December 2010, 06:18 PM   #9
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Quote:
Originally Posted by yahoo View Post
the qsc c3298 compliment a1306 will work perfectly
After 7 years he has probably solved his problem or moved on.
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Old 17th December 2010, 06:41 PM   #10
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by AKSA View Post
.......... rated at 30MHz. This is not so fast as the 4793/1837, but in practice, and particularly on an audio amplifier, you won't notice the difference as the emitter follower is intrinsically a very fast configuration; the slowest device on an audio amplifier is, by design, the voltage amplifier.
7years old, but I do like the nibbles left by AKSA for us mere mortals.
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