Complementary V-FET's other than IRF's???

Ultima Thule · 7th November 2006, 07:10 PM

Hi,

I have tried to search other brands than IRF's V-FET's for fairly complementary pairs but don't find much at all.
Would be glad to receive advices on V-FET pairs that could be used as output devices in an amplifier.
So far I know at least Toshiba 2SJ200/-201 and 2SK1529/-1530 but they are rather expensive.
For the moment there's no power spec so any advice is thankful!

Cheers Michael

Tim__x · 8th November 2006, 12:13 AM

There doesn't seem to be much.
I don't know what power level you're looking for.
These 30v TO-220 from On-Semi look remotely complementary, not great mind you.

MTP50P03HDL-D.pdf
NTP75N03L09-D.pdf

Leolabs · 9th November 2006, 06:47 AM

Have you try Exicon or Magnatec??

estman · 9th November 2006, 08:34 AM

Quote:

Originally posted by Ultima Thule
Toshiba 2SJ200/-201 and 2SK1529/-1530 but they are rather expensive.

Toshiba has new great pair: 2SK3497/2SJ618.
Accuphase uses them. Even more expensive.

estman · 9th November 2006, 09:34 AM

2SK3497 - English datasheet has values of Crss/Coss reversed !

Lord Winter · 9th November 2006, 10:32 AM

Cheap alternatives.

Fairly symmetrical/linear and reliable, but not "audiophool" grade.
IRFP240
IRFP9240

richie00boy · 9th November 2006, 10:44 AM

I believe he's asking for alternatives to the very ones you have suggested...

BobEllis · 9th November 2006, 11:33 AM

Fairchild suggests their FQA19N20C and FQA12P20 as replacements. A quick glance at the data sheets shows about as close a compliment as the IR devices (not great) Both are about $2 @ 25 pieces from Mouser.

The IRFP9140 is a closer compliment to the IRFP240. If your application allows, you may want to look at the suggested alternative FQA17P10.

I haven't tried any of these yet, though.

Ultima Thule · 9th November 2006, 09:15 PM

Quote:

Originally posted by estman

Toshiba has new great pair: 2SK3497/2SJ618.
Accuphase uses them. Even more expensive.

Tere Estman,

interesting, but being even expesiver dosen't sound good... I will look up their datasheets, always interesting study new components.

Quote:

Originally posted by BobEllis
Fairchild suggests their FQA19N20C and FQA12P20 as replacements. A quick glance at the data sheets shows about as close a compliment as the IR devices (not great) Both are about $2 @ 25 pieces from Mouser.

The IRFP9140 is a closer compliment to the IRFP240. If your application allows, you may want to look at the suggested alternative FQA17P10.

I haven't tried any of these yet, though.

Thanks Bob,

that could be something!

Let's keep on posting guys, I hope this thread could as well develope to a list on fairly complementary V-FET's from other brands everyone could enjoy of!

Cheers Michael

dangus · 10th November 2006, 06:51 AM

I'm not sure if this is relevant, but a post in another forum suggested that BUZ900 could be subbed for 2SK135 and BUZ905 for 2SJ50

7th November 2006, 07:10 PM	#1
Ultima Thule diyAudio Member Join Date: Jan 2004 Location: Koskenkorva Land	Complementary V-FET's other than IRF's??? Hi, I have tried to search other brands than IRF's V-FET's for fairly complementary pairs but don't find much at all. Would be glad to receive advices on V-FET pairs that could be used as output devices in an amplifier. So far I know at least Toshiba 2SJ200/-201 and 2SK1529/-1530 but they are rather expensive. For the moment there's no power spec so any advice is thankful! Cheers Michael __________________ "If transistors are blueberries and FETs are strawberries, then tubes must be.. pears" Michael 29th January 2010

9th November 2006, 10:32 AM	#6
Lord Winter diyAudio Member Join Date: Apr 2006 Location: Zenta	Cheap alternatives. Fairly symmetrical/linear and reliable, but not "audiophool" grade. IRFP240 IRFP9240 __________________ - I say let the Lord be our shield! - The only shield I see is the one coverin' yer eyes.

9th November 2006, 10:44 AM	#7
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	I believe he's asking for alternatives to the very ones you have suggested... __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

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8th November 2006, 12:13 AM	#2
Tim__x diyAudio Member Join Date: Jun 2004 Location: Edmonton area, Alberta	There doesn't seem to be much. I don't know what power level you're looking for. These 30v TO-220 from On-Semi look remotely complementary, not great mind you. MTP50P03HDL-D.pdf NTP75N03L09-D.pdf

9th November 2006, 06:47 AM	#3
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Have you try Exicon or Magnatec??

9th November 2006, 09:34 AM	#5
estman diyAudio Member Join Date: Jan 2005 Location: Audio Valley	2SK3497 - English datasheet has values of Crss/Coss reversed !

9th November 2006, 11:33 AM	#8
BobEllis diyAudio Member Join Date: Sep 2003 Location: Upstate NY	Fairchild suggests their FQA19N20C and FQA12P20 as replacements. A quick glance at the data sheets shows about as close a compliment as the IR devices (not great) Both are about $2 @ 25 pieces from Mouser. The IRFP9140 is a closer compliment to the IRFP240. If your application allows, you may want to look at the suggested alternative FQA17P10. I haven't tried any of these yet, though.

10th November 2006, 06:51 AM	#10
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	I'm not sure if this is relevant, but a post in another forum suggested that BUZ900 could be subbed for 2SK135 and BUZ905 for 2SJ50

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