IRF530n for Aleph?

The Usemen · 16th December 2002, 10:59 AM

Hello everybody

Just a short question. Is it possible to take the IRF530 N Mosfet for an Aleph 4 or 2 ?
It has a Voltage Rating from 100 V and a Current Rating of 17A. I’ve got a good offer for this …….
Thank you for Help

The Useman

Andypairo · 16th December 2002, 01:07 PM

I don't see any problems, provided you scale the number of devices; this must be done taking in account the maximum power dissipation in comparison to the power dissipation of the original devices, which are slightly bigger.
I'd aim to have about the same % of total power dissipation per device.

Cheers

Andrea

till · 16th December 2002, 02:41 PM

www.reichelt.de

sells irf530n 0,43 Euro each, Irfp240 1,35 Euro each. There are really expensive parts like heatsinks, transformers and capacitors. I would use irfp240, its not the big differece if you see the price for all the parts for one amp.

joensd · 16th December 2002, 02:53 PM

Till, did you ever order the IRFP240 at Reichelt?
Which company were they from?

Jens

till · 16th December 2002, 05:36 PM

joensd, i ordered and they are from IR. But this may be different now. You could call them or send a mail and ask. I did so.

Smithers · 16th December 2002, 06:05 PM

Hi,
i bought 50 IRFP240 at reichelt for my aleph4.
They are from IR and i got 4 sets of extremely good matched devices!

hugonot · 16th December 2002, 06:18 PM

There is one very important point. Isolation from radiators. IRF530 is in TO220. You have to use a plastic tube on screw. IF AMP WARM UP THIS TUBE BECOME TO SOFTEN AND IN RESULT TRANSISTOR DO NOT STICK TO RADIATOR AND SECOND RESULT IT BURN.

You need to design a good system to prevent this effect. I have burned a few in this way.

16th December 2002, 10:59 AM	#1
The Usemen diyAudio Member Join Date: Dec 2002 Location: Germany	IRF530n for Aleph? Hello everybody Just a short question. Is it possible to take the IRF530 N Mosfet for an Aleph 4 or 2 ? It has a Voltage Rating from 100 V and a Current Rating of 17A. I’ve got a good offer for this ……. Thank you for Help The Useman

16th December 2002, 06:18 PM	#7
hugonot diyAudio Member Join Date: Nov 2002 Location: Poland	WARNING !! There is one very important point. Isolation from radiators. IRF530 is in TO220. You have to use a plastic tube on screw. IF AMP WARM UP THIS TUBE BECOME TO SOFTEN AND IN RESULT TRANSISTOR DO NOT STICK TO RADIATOR AND SECOND RESULT IT BURN. You need to design a good system to prevent this effect. I have burned a few in this way.

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16th December 2002, 01:07 PM	#2
Andypairo diyAudio Member Join Date: Sep 2002 Location: near Milano , Italy	I don't see any problems, provided you scale the number of devices; this must be done taking in account the maximum power dissipation in comparison to the power dissipation of the original devices, which are slightly bigger. I'd aim to have about the same % of total power dissipation per device. Cheers Andrea

16th December 2002, 02:41 PM	#3
till Banned Join Date: Apr 2002 Location: Germany, Clausthal	www.reichelt.de sells irf530n 0,43 Euro each, Irfp240 1,35 Euro each. There are really expensive parts like heatsinks, transformers and capacitors. I would use irfp240, its not the big differece if you see the price for all the parts for one amp.

16th December 2002, 02:53 PM	#4
joensd diyAudio Member Join Date: Dec 2001 Location: Germany	Till, did you ever order the IRFP240 at Reichelt? Which company were they from? Jens

16th December 2002, 05:36 PM	#5
till Banned Join Date: Apr 2002 Location: Germany, Clausthal	joensd, i ordered and they are from IR. But this may be different now. You could call them or send a mail and ask. I did so.

16th December 2002, 06:05 PM	#6
Smithers diyAudio Member Join Date: Oct 2002 Location: Germany, Cologne	Hi, i bought 50 IRFP240 at reichelt for my aleph4. They are from IR and i got 4 sets of extremely good matched devices!

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