MSI 694D Mosfet Substitution?32N03L?

[asd123]

My MSI 694D Pro has lot of bulged caps, i replace all of the TAYEH and Lelon caps.

However, i still need to replace one of the mosfet. Its part number is 32N03L.

I search all over the web, but do not find anywhere that sell that mosfet.

There is one Japanese website that describes the same problem for the board.

http://www.geocities.co.jp/Playtown/3715/694d.html

Anyone familiar with mosfet substitution?

[davmax]

Re: MSI 694D Mosfet Substitution?32N03L?

That part number looks like a fair standard type. Interpreted, the device is 32 amps 30Volt rating. It would be a N channel MOSFET so any device witha similar rating and package size designed for 5 Volt logic drive will do.

A Fairchild product: http://www.fairchildsemi.com/ds/FD%2FFDD6296.pdf

STmicroelectronics: http://www.st.com/stonline/products/...stb55nf06l.pdf

You can buy from the web sites, but I have not tried that.

[asd123]

Re: MSI 694D Mosfet Substitution?32N03L?

Can i repace one with the sam voltage (32v) but higher Current Rating (70A?) ?

[davmax]

Re: MSI 694D Mosfet Substitution?32N03L?

Yes higher voltage or current rating is not a problem. However if the current rating is too high 80 amps is getting a bit high . The input capacitance of the MOSFET can be too high for the driver chip. That is why I kept the currents below that level, at around 50 amps on the two devices, data sheets in the post.

[davmax]

Re: MSI 694D Mosfet Substitution?32N03L?

If you have a MOSFET as described 32V 70A you need to know the other specs. Input capacitance and is it for logic drive circuits.

The STB55NF06L is available from Mouser @ $1.20 single unit price.
Mouser part No. 511-STB55NF06L The L defines a logic drive device.

[kc8adu]

Re: MSI 694D Mosfet Substitution?32N03L?

https://www.badcaps.net/forum/showthread.php?t=620
bet the ic is dead on yours too.
btw semtech has datasheets on the web and several other chips will replace the 1153

[davmax]

Re: MSI 694D Mosfet Substitution?32N03L?

I have been assuming all along that the MOSFET you are replacing is a Dpak. If you plan to buy check the size of the Dpak on the data sheet to make sure it is what you need.

I guess some of these points are bleeding obvious.I hope that you have success.

[kc8adu]

Re: MSI 694D Mosfet Substitution?32N03L?

in a pinch i have cut off the tab on a to220 device to make do.

[PeteS in CA]

Re: MSI 694D Mosfet Substitution?32N03L?

Actually, I think the package is a D2PAK (the "2" being superscripted, as in "squared").