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Any other ideas? Lots of SOT packages and larger TO packages. Even some all-metal TO packages. Most (~99%) test out OK for basic on/off. Going to build a test fixture that will put them under more of a load.
Registered Member #3272
Joined: Mon Oct 04 2010, 11:40PM
Location: Beaverton, OR
Posts: 101
I am not too sure what the exact story is. There were a couple 55 gal drums (Gone now) full of these that were brought in by a scrapper. Some are unmarked, some have sharpie marks on them with numbers. Best guess these were production test samples, the company that makes them is a couple hours away.
I got most of a 5 gal bucket of them, a friend bought about 190lbs of them. He does a lot of stuff with motor controls and power control. I figure I will never have to buy another mosfet again.
Registered Member #816
Joined: Sun Jun 03 2007, 07:29PM
Location:
Posts: 156
The square ones with 4 screw holes look nice for high power if you can identify them, most appear to have markings which is good.
If they came from a manufacturer, they may not have met some min spec in the datasheet and were rejected, though they probably will work for most purposes.
Maybe get a few people to help you sort them in to like for like piles, test a few bag fulls of each at a time, so you have some ready to use.
Registered Member #195
Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
Maybe a small test jig is in order. they may be in a can for a reason. That would be where I would start. A stiff 50-100v power source and a load resistor and a 20v power supply is all you need.
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So I got some mosfets...
