Need 2sk162

afioretti · 31st May 2004, 05:12 PM

Can anyone help me locating 2SK162 FETs for replacements in an older Hafler preamp? Any recommendations for cross referenced parts also appreciated.

The schematics call for 2SK147 but actual parts on the PCB are 2SK162. These are arranged in parallel configuration as preamp inputs

Dozuki · 1st June 2004, 01:37 AM

MCM Electronics seems to have the 2sk147's but the are $11 a piece =(
I couldn't find any 2sk162's nor much info on them with a quick google.

-D.

Charles Hansen · 1st June 2004, 02:22 AM

If I recall correctly, the 2SK162 was made by Hitachi and was roughly equivalent to the Toshiba 2SK147(except with a higher voltage rating). Both of these parts were discontinued in the early '90s. You should be able to find some remaining inventory from a distributor. If not, the only parts in production that will be close would be to parallel two matched Toshiba 2SK170s.

Keep in mind that all of these Japanese parts have a letter suffix that indicates the Idss rank. You will want to match the original parts as closely as possible.

Jocko Homo · 1st June 2004, 03:16 AM

If you really need K147s bad enough...send me an e-mail.

Or you could put two K170s in parallel.

Depending on the design, either may be overkill. Maybe for a MC stage, you might need them.

Jocko

lucpes · 1st June 2004, 05:15 PM

Aren't the correct part numbers for the Hitachi l-mosfets 2sk1058/2sj162?

Charles Hansen · 1st June 2004, 05:52 PM

Those are power MOSFETs used in the output stages of power amps.

lucpes · 1st June 2004, 08:51 PM

Quote:

Originally posted by Charles Hansen
Those are power MOSFETs used in the output stages of power amps.

Oops, sorry

That'll teach me not to post unless I know the issue well...

Charles Hansen · 1st June 2004, 09:23 PM

That's OK -- it's easy to mix up the "j" and "k".

31st May 2004, 05:12 PM	#1
afioretti diyAudio Member Join Date: May 2004 Location: Buffalo New York (USA)	Need 2sk162 Can anyone help me locating 2SK162 FETs for replacements in an older Hafler preamp? Any recommendations for cross referenced parts also appreciated. The schematics call for 2SK147 but actual parts on the PCB are 2SK162. These are arranged in parallel configuration as preamp inputs

1st June 2004, 05:15 PM	#5
lucpes diyAudio Member Join Date: Dec 2003 Location: Iasi	Aren't the correct part numbers for the Hitachi l-mosfets 2sk1058/2sj162? __________________ Deep down inside.

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1st June 2004, 01:37 AM	#2
Dozuki diyAudio Member Join Date: Jul 2002 Location: Naptown	MCM Electronics seems to have the 2sk147's but the are $11 a piece =( I couldn't find any 2sk162's nor much info on them with a quick google. -D.

1st June 2004, 02:22 AM	#3
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	If I recall correctly, the 2SK162 was made by Hitachi and was roughly equivalent to the Toshiba 2SK147(except with a higher voltage rating). Both of these parts were discontinued in the early '90s. You should be able to find some remaining inventory from a distributor. If not, the only parts in production that will be close would be to parallel two matched Toshiba 2SK170s. Keep in mind that all of these Japanese parts have a letter suffix that indicates the Idss rank. You will want to match the original parts as closely as possible.

1st June 2004, 03:16 AM	#4
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	If you really need K147s bad enough...send me an e-mail. Or you could put two K170s in parallel. Depending on the design, either may be overkill. Maybe for a MC stage, you might need them. Jocko

1st June 2004, 05:52 PM	#6
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	Those are power MOSFETs used in the output stages of power amps.

1st June 2004, 09:23 PM	#8
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	That's OK -- it's easy to mix up the "j" and "k".

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