blown outputs on mtx thunder 704x need substitute

ivkata · 6th December 2011, 05:54 AM

Local amp shop when south and purchased 40 amps from them for dirt cheap.all amps have the original stickers "made in china '' intact and all that i peaked at have mint boards with 1-2 bad outputs -irl540n .i have some irf540n here but for sure not enough for all amps .can i use irf540n instead or not.

amps are mtx thunder 704x and 702x
i know those are not top shelf but will sell like hot bread at 50-60 each to the flea market

ivkata · 6th December 2011, 07:41 AM

and in the power supply they use irfz48n i do have irfz44n can those be used as well.

brandes.cm · 6th December 2011, 11:16 AM

The IRL540 is a logic level part, you would have to know what gate voltage it will see.

The IRFZ44 is a lower spec'd part, I wouldn't use it. Look for a FDP50N06 or FQP50N06 as a replacement.

Sent from my DROID using Tapatalk

ivkata · 6th December 2011, 01:22 PM

irfz44n is a lower specs i got few irfz46n as well .i do have some rfp50n06 as well that i got years ago.

brandes.cm · 6th December 2011, 02:28 PM

The RFP50N06 is not rated for the same current as the IRFZ48N. The 48N is rated for 65amps and the 50N06 is rated at 50 amps.

I'd suggest looking at the datasheets and getting familiar with them. If the replacement parts are a good match it does not mean it will work in the amp. Some amps are very particular about the part that is used.

ivkata · 6th December 2011, 02:47 PM

so looking online for the same parts as i got 10 amps each and all have either blown power side or blown amp side .so i was able to locate the same irfz48n at 2 different prices but side offers them for 2 times less .wondering if u have purchased parts from match.... i hope u know them as I'm worried for parts quality

brandes.cm · 6th December 2011, 04:18 PM

I don't understand? I order from Digikey, Mouser (same price usually) and Avnet Express. Avnet would be the cheapest if they have them. I don't order from Ebay.

brandes.cm · 6th December 2011, 04:23 PM

Avnet has IRFZ48N and IRL540n for $.48 each.

ivkata · 6th December 2011, 04:47 PM

thank u for sharing this side with me I've never purchased parts from them

6th December 2011, 05:54 AM	#1
ivkata diyAudio Member Join Date: Dec 2010	blown outputs on mtx thunder 704x need substitute Local amp shop when south and purchased 40 amps from them for dirt cheap.all amps have the original stickers "made in china '' intact and all that i peaked at have mint boards with 1-2 bad outputs -irl540n .i have some irf540n here but for sure not enough for all amps .can i use irf540n instead or not. amps are mtx thunder 704x and 702x i know those are not top shelf but will sell like hot bread at 50-60 each to the flea market

6th December 2011, 11:16 AM	#3
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	The IRL540 is a logic level part, you would have to know what gate voltage it will see. The IRFZ44 is a lower spec'd part, I wouldn't use it. Look for a FDP50N06 or FQP50N06 as a replacement. Sent from my DROID using Tapatalk __________________ BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

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6th December 2011, 07:41 AM	#2
ivkata diyAudio Member Join Date: Dec 2010	and in the power supply they use irfz48n i do have irfz44n can those be used as well.

6th December 2011, 01:22 PM	#4
ivkata diyAudio Member Join Date: Dec 2010	irfz44n is a lower specs i got few irfz46n as well .i do have some rfp50n06 as well that i got years ago.

6th December 2011, 02:28 PM	#5
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	The RFP50N06 is not rated for the same current as the IRFZ48N. The 48N is rated for 65amps and the 50N06 is rated at 50 amps. I'd suggest looking at the datasheets and getting familiar with them. If the replacement parts are a good match it does not mean it will work in the amp. Some amps are very particular about the part that is used.

6th December 2011, 02:47 PM	#6
ivkata diyAudio Member Join Date: Dec 2010	so looking online for the same parts as i got 10 amps each and all have either blown power side or blown amp side .so i was able to locate the same irfz48n at 2 different prices but side offers them for 2 times less .wondering if u have purchased parts from match.... i hope u know them as I'm worried for parts quality

6th December 2011, 04:18 PM	#7
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	I don't understand? I order from Digikey, Mouser (same price usually) and Avnet Express. Avnet would be the cheapest if they have them. I don't order from Ebay.

6th December 2011, 04:23 PM	#8
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Avnet has IRFZ48N and IRL540n for $.48 each.

6th December 2011, 04:47 PM	#9
ivkata diyAudio Member Join Date: Dec 2010	thank u for sharing this side with me I've never purchased parts from them

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