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IRFP-450 Mos Fet Harris

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polar bear6:
i came across a guy thats selling 300 mosfets, and i wondered if they are suitable for making H bridges or other cool robotic stuff.
heres a data sheet.
I'm really not very good at reading datasheets since i don't know what the things are called and how much current or voltage it needs and stuff, so if anyone could help me it would be really great  :)

how much? digikey is selling them for $3 each (at the moment out of stock, and 8 years old technology). 300 is a bit much, as ive only used about 20 mosfets in the last 4 years.

skimming through the datasheet, it looks like a useful power mosfet. i recommend buying maybe 5 or 10 of them (if you can get them under $2 each) - as you get better in robotics you will find them useful to keep around.

if you have specific questions on reading datasheets, i encourage you to ask. its an important skill to have for robot building  :P

polar bear6:
he is selling 300 for about 32$.
thats without the shipping, the whole schazam weights 2,2 kilos  :-\ so the shipping will cost some money too, but i am going to buy some others stuff from him too. i think he had an electronic shop and it didnt work out as well as he thought and now hes just selling it all.
hes selling these big packages that costs 500-1000$ new for just 70-150$.
i have bought from him before so i know he delivers what he say he sells...

I'm using Harris IRFP150s and 250s, which are in the same family; as well as IRFP340s, 352s and 264s in half and full bridges in military power supplies. They're excellent parts for bridges - in certain applications. Even though their Rds(on) rating of .33 ohms isn't near as low as the newer generation of FETs, it's still respectably low for a 500 Volt transistor. At any current over about 2 Amps, it's going to have a higher forward voltage drop than a silicon transistor - but it should be easier to drive on into saturation. If you're planning to switch low voltage at high currents, you would need to use more than one in parallel, in order to lower your forward voltage drop. For higher voltages at lower current - they are pretty good. At $0.11 each - you really can't lose.

polar bear6:
okey thanks for the reply, but i wonderd since its a 500 volts transistor, will it be usable for driving 6-24v motors?
i really dont have any plans making robots that use 500v...


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