power mos for Aleph 30

same · 23rd January 2007, 10:57 AM

Hi, what are the best power mosfet for aleph 30 between these alternative?

IRFP244
IRFP240
IRFP044N

IRFP044N seems good for their high transconductance, but i'm not so expert. (in english also!!)
What meens the final "N"?

Peppe · 23rd January 2007, 12:15 PM

Quote:

Originally posted by same

What meens the final "N"?

http://www.diyaudio.com/forums/showt...458#post995458

Ciao

HIPCHECK · 23rd January 2007, 01:20 PM

A search in PASS LABS forum, and mosfet choices came up with this and many more links:

Power Mosfet Choices

another quick link about mosfet choices

Aleph 3/30 MOS-FET Choice?

i hope that helps.

h_a · 23rd January 2007, 01:46 PM

Why don't you have a look at the Aleph-30 wiki?

It's here, you would also immediately know Nelson Pass' reply to this!

Have fun! Hannes

Ed LaFontaine · 24th January 2007, 01:23 AM

Quote:

Why don't you have a look at the Aleph-30 wiki?

ERrr.., thanks, I needed that!

GRollins · 24th January 2007, 03:42 AM

The IRFP044 is trending towards risky given the voltages involved. Assuming that I haven't slipped a cog, that's a 60V part. Running full-tilt-boogie, you're going to be approaching 40-45V on peaks.
Now that I've made my plea for sanity, and in the interests of full disclosure, I will confess that I am running an Aleph 3 with IRFP044s. So far I haven't popped anything, but then it's my tweeter amp, so there's just not a lot of voltage swing involved.

Grey

23rd January 2007, 10:57 AM	#1
same diyAudio Member Join Date: Jan 2006 Location: genova	power mos for Aleph 30 Hi, what are the best power mosfet for aleph 30 between these alternative? IRFP244 IRFP240 IRFP044N IRFP044N seems good for their high transconductance, but i'm not so expert. (in english also!!) What meens the final "N"?

23rd January 2007, 01:46 PM	#4
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	Why don't you have a look at the Aleph-30 wiki? It's here, you would also immediately know Nelson Pass' reply to this! Have fun! Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

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23rd January 2007, 01:20 PM	#3
HIPCHECK diyAudio Member Join Date: Jun 2004 Location: ARKANSAS	A search in PASS LABS forum, and mosfet choices came up with this and many more links: Power Mosfet Choices another quick link about mosfet choices Aleph 3/30 MOS-FET Choice? i hope that helps.

24th January 2007, 03:42 AM	#6
GRollins diyAudio Member Join Date: Feb 2001 Location: Columbia, SC	The IRFP044 is trending towards risky given the voltages involved. Assuming that I haven't slipped a cog, that's a 60V part. Running full-tilt-boogie, you're going to be approaching 40-45V on peaks. Now that I've made my plea for sanity, and in the interests of full disclosure, I will confess that I am running an Aleph 3 with IRFP044s. So far I haven't popped anything, but then it's my tweeter amp, so there's just not a lot of voltage swing involved. Grey

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