MTX Thunder250D

[PhaseShift]

I am repairing my neighbor's girlfriend's car amp and I need either a schematic or a cross reference part number. Whenever it is turned on two of the MOSFETS go up in smoke (connected in parallel). The parts are i think a TO-220 package and they have this written on it:
<p>
75339P
HO 27

The manufacturers logo is unrecognizeable because of the heat. Both FETs blew out the same leg. I called digi-key and all they could come up with is a Harrison MOSFET but they couldnt confirm an exact match. Thanks!

David

 

[Neutron Bob]

Mitek/MTX

Look up MTX with Google...there is a service number listed there, I believe. Their service personnel have helped me in the past...try voice first (telephone). I'm sure they'll help you.

 

[ocool_15]

Did you ever get that info out of MTX? I realize this is a old thread but I have a mtx 282 I got from ebay and most of the power devices were removed so I need to find what they are. I was hoping to get a schematic of it or a similar mtx amp....

 

[Eva]

These numbers stand for 'HUF75339P3'. It's a N-channel switching MOSFET from Intersil (formerly Harris Semiconductor) and it's rated at 55V, 70A and 0.012 ohms Rds-on.

It should be quite easy to find the same part or a suitable replacement.