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-   -   Datasheet for IRF244? (http://www.diyaudio.com/forums/solid-state/667-datasheet-irf244.html)

ghee0 30th August 2001 02:45 AM

Hi,

Can someone forward me a copy of IRF244 datasheet?
Can't seem to find it elsewhere.

Thank you

ghee0
ghee0@yahoo.com

tortello 30th August 2001 06:56 AM

Look at the International Rectifier website:
http://www.irf.com


ghee0 30th August 2001 07:15 AM

But looks like IRF244 is a discontinued product and I can't find the datasheet either in IRF, Harris, Intersil or even microsemi. Anyone?

Thanks.
ghee0

Eric 30th August 2001 01:46 PM

Check <a href="http://members.ozemail.com.au/~dkfinnis/passlabs/aleph4_download.htm">Mark Finnis' web page</a>. He built an Aleph 4 and has the data sheets on his web site.

Rob 30th August 2001 06:33 PM

http://www.irf.com/product-info/data...ta/irfp244.pdf

Nelson Pass 30th August 2001 06:54 PM

The IRF244 is pretty much an IRF240. We
use it instead of the 240 because it has
standard TO-3 pin width, where the 240 in
a "to-3" case is nonstandard.

The to-3's are very difficult to get, but the
IRFP240 plastics work just fine.

ghee0 31st August 2001 02:06 AM

IRFP240 or IRF640?
 
Thank you for all the feedbacks.

With the specs on the datasheet, looks like IRF640 is a great replacement for IRFP240. But why the price of IRFP240 is three to four times as much as IRF640?

IRFP240 is meant for audio and IRF640 is designed for switching PS?

Is there any magic number behind IRFP240 that we don't know?

What do you all think about IRF640?

Thank you again!
ghee0

K-amps 17th January 2004 11:52 AM

Price of IRF244
 
IMHO,

While I make no claims to know the complete truth ;) , I believe the IRF244 is expensive because it is discontinued AND in demand.

One reason for its Demand is that it is used in the Adcom flagship GFA-5802. Adcom themselves do no have this part and are willing to pay top $$ to buy an inventory... :hot:

tonimxp 17th March 2011 09:01 PM

Quote:

Originally Posted by Nelson Pass (Post 4387)
The IRF244 is pretty much an IRF240. We
use it instead of the 240 because it has
standard TO-3 pin width, where the 240 in
a "to-3" case is nonstandard.

The to-3's are very difficult to get, but the
IRFP240 plastics work just fine.

Hi!Please can you conferm me that i can replace the irf240 with irf244 without any modification to the circuit in your aleph mini project?
Thanks in advance and congratulations for your mind:)


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