Something of interest.

[Jamie]

I found this, I am sure most of you already have this info, but for
those that do not..
Nice explanation on how they rate their current handling on MosFets.

I find it useful when you see absurd spec's on some of these huge
current quotes on small parts.

http://www.vishay.com/docs/74670/74670.pdf

Jamie

 

[Grant]

My oh my! IRC should read and heed!!!

IR?

Still, the last method gets exciting. 50% lethal rating for datasheet?

Sounds like John L. territory

Grant.

 

[Jamie]

My oh my! IRC should read and heed!!!

I don't know how I should respond to that? I posted it out of
common courtesy, in hopes that maybe it would be beneficial to some one?

I remember a slew of posts dating back some months ago with
controversial specifications for Power MosFets from various venders with
absurd Ids ratings in small packages. Knowing how engineers come up with
these figures would make it most beneficial when implementing them in a
project.

If you feel my efforts are wasted, just say so, I won't bother
to post any more for the group.

Jamie

 

[John KD5YI]

I don't know how I should respond to that? I posted it out of
common courtesy, in hopes that maybe it would be beneficial to some one?

I remember a slew of posts dating back some months ago with
controversial specifications for Power MosFets from various venders with
absurd Ids ratings in small packages. Knowing how engineers come up with
these figures would make it most beneficial when implementing them in a
project.

If you feel my efforts are wasted, just say so, I won't bother
to post any more for the group.

Jamie

It is an appropriate post IMHO.

If you look at some of the honest manufacturers' specs, they will give
ludicrous specs on Id and then (in very small letters below) say that
the package limits are lower.

This is a very appropriate flag.

Cheers,
John