Why FET4108N is better than the FET 4833N?

Why FET4108N is better than the FET 4833N?

[Semi Pro]

because there is no threes in its label, we all no threes are bad

[Arct1k]

http://pdf1.alldatasheet.com/datashe...TMFS4833N.html

http://www.digchip.com/datasheets/pa...S4108N-pdf.php

[Pdelcast]

Originally Posted by galaxy76

Why FET4108N is better than the FET 4833N?

Actually, the 4833 has lower resistance than the 4108, but it has several other disadvantages that make the 4108 superior in some applications (like the Mamba Monster.) (I could go into details, but do you really want to hear about maximum current slew rates, turn on induction, and maximum drain dV/dT?)

And Castle is now using the NTMFS4901 for new production (as of about two months ago.) The 4901 is being manufactured exclusively for Castle. The 4901 is a FET that has been tweaked specifically for our application.

Thanx!

[BrianG]

Originally Posted by Pdelcast

...And Castle is now using the NTMFS4901 for new production (as of about two months ago.) The 4901 is being manufactured exclusively for Castle. The 4901 is a FET that has been tweaked specifically for our application.

Thanx!

So, no more 4933's? I thought those were the best of the 4108's and 4833's?

Now, you are going to have to post a datasheet of those 4901's.

[Pdelcast]

Originally Posted by BrianG

So, no more 4933's? I thought those were the best of the 4108's and 4833's?

Now, you are going to have to post a datasheet of those 4901's.

The 4901 is a 4933 with a minor tweak done for Castle.

For the monster, the 4108 was the best choice until the 4933 was released. The 4933 had one slight issue, so Onsemi made us the 4901 (which is a house number for OnSemi -- it wasn't going to be used, so they used it for our special version.) And the 4901 won't be available to our competitors.

So now we are using the 4901 in the MMP and the MMM.

Patrick

[simplechamp]

Originally Posted by Pdelcast

but do you really want to hear about maximum current slew rates, turn on induction, and maximum drain dV/dT?

Careful, your going to get BrianG all worked up...

[What's_nitro?]

Originally Posted by Pdelcast

I could go into details, but do you really want to hear about maximum current slew rates, turn on induction, and maximum drain dV/dT?

... Yes. I know at least one other person who would take interest.

[lutach]

I still have a V1 Mamba Monster that I haven't used yet. Can I send it in to get it replaced with a Mamba Monster with the new FETs?

[nitrostarter]

Originally Posted by lutach

I still have a V1 Mamba Monster that I haven't used yet. Can I send it in to get it replaced with a Mamba Monster with the new FETs?

Contact Patrick, I'm sure he can make sure its a NEW version!

Originally Posted by Pdelcast

Actually, the 4833 has lower resistance than the 4108, but it has several other disadvantages that make the 4108 superior in some applications (like the Mamba Monster.) (I could go into details, but do you really want to hear about maximum current slew rates, turn on induction, and maximum drain dV/dT?)

And Castle is now using the NTMFS4901 for new production (as of about two months ago.) The 4901 is being manufactured exclusively for Castle. The 4901 is a FET that has been tweaked specifically for our application.

Thanx!

Yes I am very interested. Thanks!

Originally Posted by Pdelcast

Actually, the 4833 has lower resistance than the 4108, but it has several other disadvantages that make the 4108 superior in some applications (like the Mamba Monster.) (I could go into details, but do you really want to hear about maximum current slew rates, turn on induction, and maximum drain dV/dT?)
And Castle is now using the NTMFS4901 for new production (as of about two months ago.) The 4901 is being manufactured exclusively for Castle. The 4901 is a FET that has been tweaked specifically for our application.

Thanx!

Yes I am very interested. Thanks!

[Pdelcast]

Originally Posted by galaxy76

Yes I am very interested. Thanks!

Ah, but if I comment on this, competitors will also see -- and it's not very interesting for the general community.

[brushlessboy16]

Will the end user see any changes in performance between Monsters with the older FET's and the newer units?

[Pdelcast]

Originally Posted by brushlessboy16

Will the end user see any changes in performance between Monsters with the older FET's and the newer units?

The newer Monsters will handle a bit more power, and run a bit cooler than the older units.