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need to find out which IRFZ44N to get..help please
need to find out which IRFZ44N to get..help please
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Old 12th July 2007, 03:56 AM   #1
Wyldhorse is offline Wyldhorse  United States
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Join Date: Jul 2007
Default need to find out which IRFZ44N to get..help please

2 of the IRFZ44N fet's in my audiobahn amp blew....looks kinda cool...

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Click the image to open in full size.

So i'm trying to make sure I get the right mosfets. I know it's the IRFZ44N...duh..but where can I go to get the ones I need? most of the ones I find don't have the "350G" on it like the one in my amp. i just want to make sure I get the right ones.
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Old 12th July 2007, 04:17 AM   #2
Perry Babin is offline Perry Babin  United States
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Join Date: Nov 2003
Location: Louisiana
Digikey will have the IRFZ44N. The rest of the numbers are date/production codes and various other bits of information. All you need is the IRFZ44N.

You MUST replace all of the power supply FETs. The FETs must match. Mixing old and new (even if the old are OK) will result in poor reliability.

The drive circuit may also be damaged. You should pull all of the Z44s and measure the gate drive voltage to make sure it's OK. With a multimeter, you would expect the gate drive voltage to be ~1/2 of B+ when measuring it with the meter set to DC volts.
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Old 14th July 2007, 10:46 PM   #3
audiobahnkid592 is offline audiobahnkid592  United States
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Join Date: Mar 2007
audiobahn intake series amps are notorious for this...what model number is yours?
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