For sale: $2.99 - IRFP450 500V 14A MOSFETs

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For sale: $2.99 - IRFP450 500V 14A MOSFETs

Postby blackplasma » Thu Feb 08, 2007 6:36 pm

hi guys,
here's the sob-story: I'm selling IRFP450 MOSFETs in order to scrounge some money for a 'proper' oscilloscope (I'm working at 13.56MHz, and trying to move up to 27.12MHz. Although my toy Labtech 20MHz scope still triggers, I can't see any harmonic content, and the timebase tells lies). Perhaps with the new scope, I'll blow up fewer MOSFETs and will be able to tinker my class-E contraptions with fewer tearstained semis before bedtime :?

Please read the small print.

Image

The IRFP450 is a 500V, 14A device.
I'd like to sell them for USD$2.99 per MOSFET.
They are genuine International Rectifier MOSFETs, not ST etc and come with handy free stuff. *1

I'm happy to ship them anywhere in the world, it won't cost more than a few dollars. *2
If you live in the Sydney CBD, I'll deliver them personally by bicycle for free. ^_^

I don't know where you guys get your bits, but here's what some of the competition sells them for:
    USD$3.73 from allied electronics
    USD$4.00 from mouser
    USD$11.27 from farnell
    USD$6.61 from digikey


I can Direct Deposit within Australia, or PayPal from anywhere. *3

Cheers, and to a better oscilloscope! :-)

Are there any Australians on this board? You guys have first pick because it's hard to get parts like this within Aus.

*1 - I will include a complimentary laserprinted datasheet AND colour-laserprinted gate-drive guide for your convenience.

*2 - And the first responder will get free worldwide shipping. :D

*3 - If you pay by credit card, I'll receive a theoretical negative discount with compliments from paypal, as account gets ripped off for merchant fees, but I won't charge you extra, because I'm a sook.

Steak-knives and weight-loss guide are not included.
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Postby WA2WVL » Sun Feb 11, 2007 8:51 pm

Blackplasma:

As far as Class E at 27Mhz, the IRFP32N50K should work well in Push-Pull
at 27Mhz. It has a feedback capacity of less than 1% of it's input C.
and is twice as large as the 450.

Floyd WA2WVL
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Postby blackplasma » Mon Feb 12, 2007 3:08 am

Thanks Floyd,
not aiming at 27.12MHz just yet; just trying to flog these 450s to fund a proper oscilloscope. But, at that point I just might be crazy enough to have a go at the 10m band with a discrete gatedriver (no DEIC420s to be seen around here).

I'll check out the IRFP32N50K datasheet, thanks.

Matt
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Postby blackplasma » Wed Feb 28, 2007 1:18 am

hi all,
I've put these same MOSFETs on eBay, available as a batch of 32, nice and cheap:

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0091801810

Tell your friends ;-)
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Postby N3LRX » Wed Feb 28, 2007 2:50 am

You could also try selling them as a lot..
Dutch Auction I guess they call it. Allow people to buy as many as they want until they're all gone. (Might even make more profit on shipping! :twisted: )
73 DE Randy N3LRX
You can't spell HAM without AM!
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Postby blackplasma » Wed Feb 28, 2007 4:21 am

I couldn't get eBay to select any quantities other than "1"... grrr -- I bet the interface behaves differently between firefox and internet explorer, etc... :-/

And yeah, perhaps in future I shouldn't offer FREE shipping; but it just makes it so much simpler :P
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Postby blackplasma » Sat Mar 10, 2007 8:41 pm

hi guys, I've relisted these on eBay Australia AND eBay USA so normal people can buy them, too. :P

Arg, still can't get the 'quantity' function working... but I'm still offering free shipping, cuz I'm a sook. =P

eBay Australia:
http://cgi.ebay.com.au/32-x-IRFP450-500V-14A-N-channel-MOSFET-power-transistor

eBay USA:
http://cgi.ebay.com/32-x-IRFP450-500V-14A-N-channel-MOSFET-power-transistor
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