2SJ79, 2SK216 substitutes - diyAudio
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Old 6th October 2005, 04:42 AM   #1
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Default 2sj79 2sk216 substitutes

Hi - guys, does anyone knows the proper substitute for the 2sj79 and 2sk216 --- irf610 and irf9610 doesn't seem to be just right

thanks and best regards
sunny
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Old 6th October 2005, 01:33 PM   #2
zinsula is offline zinsula  Switzerland
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If you can get these, you'll not need to substitute....
http://www.renesas.com/fmwk.jsp?cnt=...r_mos_gen_amp/

Substituting a lateral MOS-FET (the types you mentioned are laterals) with a vertical is not that simple in many cases, and it's not a drop in.
The vertical IRF's need higher gate-source voltage to turn on, and they have substancially higher Cgd.
And I believe Charles Hansen would point out that the laterals do sound better...

Also, if I recall correctly, the pinout is different...

What do you need to build or repair? A schematic would be useful to help.
If you do not need the high dissipation and voltage rating of the 2S.... types, you could try to use e.g. the small ZVN3310 / ZVP3310 from Zetex. They have comparable Cgd and transconductance, and gate threshold voltage is also lower than the IRF's.

Tino
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Old 6th October 2005, 02:04 PM   #3
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Bonjour sunny,

Why substitutes ? 2SJ79 and 2SK216 remain an actual product with a good distribution.

Toshiba's 2SJ313 and 2SK2013 are so TO220 case (25W) with small Ciss, Crss. But pinout is as different as IRF.

http://perso.wanadoo.fr/jm.plantefeve/2SK2013.pdf
http://perso.wanadoo.fr/jm.plantefeve/2SJ313.pdf

Jean-Marc.
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Old 6th October 2005, 02:39 PM   #4
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Default hmmm

thanks for replyes.... i can't find them in local stores in my country (RS, Burklin, Digikey also don't have them).... Farnell has them but I have a minimum order of 50Euro's.... so it is a problem - if I can find them somwhere I would by them on reasonable terms..... suggestions....?

sch is like in post 14 or 16 of this thread - something like this with right parts...... (sch's are not completely checked - especially sch in post 14)

headphone amp similar to Borbely jfet design
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Old 6th October 2005, 02:57 PM   #5
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Sunny,

2SK216 and 2SJ79 (200V) : http://www.borbelyaudio.com/audiophile_components.asp (Germany)
2SK214 and 2SJ77 (160V) : http://www.selectronic.fr/ (France)

Jean-Marc.
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Old 6th October 2005, 03:06 PM   #6
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The BUZ900 (N-ch) and BUZ905 (P-ch) are lateral power FETs for audio.

The Magnatek website has the data, and they are available from RS-components in the UK (But not from Farnell as far as I know).
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Old 6th October 2005, 04:45 PM   #7
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Quote:
Originally posted by Jean-Marc P
Sunny,

2SK216 and 2SJ79 (200V) : http://www.borbelyaudio.com/audiophile_components.asp (Germany)
2SK214 and 2SJ77 (160V) : http://www.selectronic.fr/ (France)

Jean-Marc.
borbely has also minimum order of 50 euro.... will see about selectronic....thnx



Quote:
Originally posted by Ouroboros
The BUZ900 (N-ch) and BUZ905 (P-ch) are lateral power FETs for audio.

The Magnatek website has the data, and they are available from RS-components in the UK (But not from Farnell as far as I know).
hmmm ... this might be nice... will see the datasheets....

any other suggestions about 2sk216 and 2sj79????
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Old 6th October 2005, 05:01 PM   #8
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i looked in the data's for buz900/905...... they are not really suitable to replace 2sj79 and 2sk216----capacitances are to high - almost as with irf's


sj79..sk216 ????


tried to open english pages on selectronic but they don't work.... don't know french...
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Old 6th October 2005, 07:49 PM   #9
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Default found something here....

http://www.bdent.com/

must check.... but it is promissing (2sj79 and 2sk216)
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Old 6th October 2005, 08:02 PM   #10
tvi is offline tvi  Australia
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Audio lab of Georgia has some in stock.
Have ordered from them in the past and everything arrived as ordered>

Regards
James
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