James Cameron wrote:
>
> Ryan Pogge wrote:
> > its a IFR510
> > what the heck is this thing for?
>
> Russell gave a good answer, Ryan, but I'll add a bit from my perspective
> ... I've only just learned about these things in the past few months.

Aww shucks! Your turning my head.

<snip>

> How useful is it to you?  Think of any case where you want to use a
> relay to switch DC, and try out the MOSFET in it's place.  Quieter, more
> reliable, no moving parts, and much easier to destroy.
>

Not to mention, they take almost no drive at all. I have sorted batches
of hundreds of MOSFET's by gate capacitance, big 14 Amp 400 Volt things,
and
the most gate capacitance I saw was about 35 pF. That's thirty five pico
Farads.

And they are usually cheaper than a relay.

Russell Hedges