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where can i buy a NTP12N50 power transistor? Answered

I am building a solid state tesla coil and i cant find the NTP12N50 or NTP12N40 transistors, does anybody know where i can get some? here is the website i am using to build it http://www.angelfire.com/electronic/cwillis/fetcoil2.html.

3 Replies

Doug ParadisBest Answer (author)2010-11-24

You should be able to use a IRF740.

Jamesco Electronics has the IRF740 which they show as equivalent for $0.65.  Looking at the circuit I think that Jamesco is right they would be equivalent for this project.

The link you attached with the circuit suggested getting samples from On Electronics.

IRF740 - N chan, Vdss = 400V, Id(max) = 10 A, Rsd(on) = 0.48 - 0.55 ohms
NTP12N50 - N chan, Vdss = 500V, Id(max) = 12 A, Rsd(on) = .5 ohms

Jamesco link:

On Semiconductor (maker of NTP12N50) link:

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well i didnt see anything for samples or buying on On Semiconductor.

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frollard (author)Doug Paradis2010-11-24

That pretty much covers it.

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