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irfp460 alternatives?

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lardembargo

Wed Nov 28 2007, 08:55AM

Registered Member #887 Joined: Sun Jul 08 2007, 10:24PM
Location:
Posts: 2

Hiya, I was thinking of trying out something sstc-flavour, and not too big or complicated to begin with! Lots of people seem to have pretty good results with IRFP460 mosfets (230v mains here) but I've been searching around and nowhere seems to have any :(

The mailorder place here used to have them for about $6each which wasn't too bad, but now they're up to $50 with an unspecified order time, which doesn't fill me with confidence. And Mr Digikey and so on still have some, but will charge me about $75 shipping cos I think that's their standard rate to discourage people from ordering from places that they don't know where they are. Like NZ.

Anyway, it doesn't look like I'll be able to get hold of any of the 460s. I have 2, but I didn't want to start building something and then have them explode and not be able to get any spare ones cos that would, you know, suck too. Are there any other ok mosfets I could look for instead? From some trawling the Inter Web I wondered if these might work?

STP20NM50FD or maybe STW20NM60

data I found

thanks for any advice anyway, cheers

ragnar

Wed Nov 28 2007, 09:58AM

Registered Member #63 Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425

When I purchased from Digikey, they charged me ~US$39 for shipping and US$6 international order processing fee. The shipping was so high because my (large) package had some big component kits in them.

Ian

Wed Nov 28 2007, 10:33AM

Registered Member #62 Joined: Thu Feb 09 2006, 05:58AM
Location: Feilding, New Zealand
Posts: 7

Hi,
Your location isn't filled out so its hard to know where you are from, but ill assume its New Zealand, if so you can get a few IRFP460's from here. Im not sure if they a suitable or not being a different case style?.
Good luck.

Dr. Drone

Wed Nov 28 2007, 07:01PM

Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
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Posts: 1673

Coronafix

Thu Nov 29 2007, 03:46AM

Registered Member #160 Joined: Mon Feb 13 2006, 02:07AM
Location: Melbourne, Australia
Posts: 938

Ok, I started a thread related to this in General Science, but i'll ask here as well.
Is this a good FET to replace the IRFP460?

I've found a lot of different 460s with different end letters and prices, anyone know the difference?
And why do people only pay$6 for theirs when the cheapest I've found is $14Aus?

Zum Beispiel

Thu Nov 29 2007, 12:45PM

Registered Member #514 Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295

Goldsphere wrote ...

Ok, I started a thread related to this in General Science, but i'll ask here as well.
Is this a good FET to replace the IRFP460?

I've found a lot of different 460s with different end letters and prices, anyone know the difference?
And why do people only pay$6 for theirs when the cheapest I've found is $14Aus?

People in the US seem to get their IRFP460s for next to nothing... Newark has them for around 3$, but the cheapest I can get from a "real" supplier in Finland are 7â‚¬. From Farnell I can get them for 14â‚¬ a piece which is way too much considering they'll probably suffer a horrible fiery death

.

Ebay is the way to go, but unfortunately I can't use it. If I order from the US I can get them for a decent price, but then theres shipping and handling costs that take the cheap out of them

.

This is why I'm limited to irfp450s in my Mark II coil. Got a deal of 3â‚¬/pop for the 450s a while ago. Too bad they are 0.45R devices, so dissipation is a bit of a problem. They seem happy enough on a CPU heatsink, though.

Almost any 500V (or 400V) fet with 20A current capability and RDSon of 0.27R does the job. Or IRFP450s, if you don't mind the decreased current capability and increased dissipation. The FET you linked to seems pretty much ideal

. Bit high gate capacitance, but not a problem at lower frequencies (<500kHz)

Kizmo

Thu Nov 29 2007, 01:34PM

Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624

Zb wrote ...

People in the US seem to get their IRFP460s for next to nothing... Newark has them for around 3$, but the cheapest I can get from a "real" supplier in Finland are 7â‚¬. From Farnell I can get them for 14â‚¬ a piece which is way too much considering they'll probably suffer a horrible fiery death

I just bought a bunch of IRFP460's from partco (

) Ã¡ 2,95â‚¬

Zum Beispiel

Thu Nov 29 2007, 02:21PM

Registered Member #514 Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295

Damn, I didn't know Partco stocked those. Well, that solves that then

Josh Johnson

Sat Dec 08 2007, 08:06AM

Registered Member #793 Joined: Sun May 20 2007, 06:50PM
Location: Minneapolis, MN
Posts: 35

Jameco has IRFP460s for
1+ 2.45
10+ 2.25
100+ 2.11
Jameco
Best price I have seen. They're lead free to boot.

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