2sk1058 and 2sj162 subs

rtill · 12th March 2009, 04:19 PM

what are good subs for these mosfets?

Would FQA7N80C be ok for the 2sk1058 and would FQA9P25 be ok for the 2sj162?

jackinnj · 12th March 2009, 05:23 PM

Not a substitute.

CBS240 · 12th March 2009, 05:34 PM

2SK1058 & 2SJ162 are lateral mosfets. The Fairchild Q-fets are most similar to hex-type devices and are vertical mosfets. Look at the transfer characteristic graph of both types and you will see a big difference of where the zero temperature coefficient operating point is located. This, and the fact that V-th of the Q-fets is a couple of volts higher rules them out as viable substitutes.

rtill · 12th March 2009, 07:39 PM

so does anyone know of any subs?

jackinnj · 12th March 2009, 08:44 PM

Exicon's are sold by Profusion in the U.K.

You can get the Renesas from MCM Electronics -- they say they're Hitachi -- perhaps they found some old stock.

Cauhtemoc · 13th March 2009, 03:19 PM

The 2SK1058 and 2SJ162 are still actively manufactured.

fjr · 13th March 2009, 04:47 PM

j162 and k1058 are already subs! (of k135/j50)

12th March 2009, 04:19 PM	#1
rtill diyAudio Member Join Date: Sep 2006	2sk1058 and 2sj162 subs what are good subs for these mosfets? Would FQA7N80C be ok for the 2sk1058 and would FQA9P25 be ok for the 2sj162?

12th March 2009, 05:34 PM	#3
CBS240 diyAudio Member Join Date: Aug 2005 Location: K-town	2SK1058 & 2SJ162 are lateral mosfets. The Fairchild Q-fets are most similar to hex-type devices and are vertical mosfets. Look at the transfer characteristic graph of both types and you will see a big difference of where the zero temperature coefficient operating point is located. This, and the fact that V-th of the Q-fets is a couple of volts higher rules them out as viable substitutes. __________________ All the trouble I've ever been in started out as fun......

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12th March 2009, 05:23 PM	#2
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	Not a substitute.

12th March 2009, 07:39 PM	#4
rtill diyAudio Member Join Date: Sep 2006	so does anyone know of any subs?

12th March 2009, 08:44 PM	#5
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	Exicon's are sold by Profusion in the U.K. You can get the Renesas from MCM Electronics -- they say they're Hitachi -- perhaps they found some old stock.

13th March 2009, 03:19 PM	#6
Cauhtemoc diyAudio Member Join Date: Jun 2007	The 2SK1058 and 2SJ162 are still actively manufactured.

13th March 2009, 04:47 PM	#7
fjr diyAudio Member Join Date: Feb 2009	j162 and k1058 are already subs! (of k135/j50)