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ryktnk
Joined: Apr 24, 2008 Posts: 285 Location: london
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Posted: Tue May 13, 2014 12:23 pm Post subject:
Where have all the JFET Transistors gone ? |
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Hello
Sorry if I missed something, but whilst I was out . . .
Just logged into RS Components to stock up on some 2N3819s
and they appear to be discontinued !
Same at Rapid Electronics, oh dear.
RS are only showing 1 non SMD FET transistor [ 2n4393 ]
Any thoughts on non SMD 2N3819 replacements ?
Worried
-ryk |
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Broadwave
Joined: Feb 16, 2007 Posts: 347 Location: Manchester UK
Audio files: 6
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Posted: Wed May 14, 2014 9:47 am Post subject:
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I guess it depends what you're using them for. I've subbed 5459's for them in the occasional S&H circuit (watch the pin-out)... seems to work fine.
I noticed several years ago that 2N5457/9s were becoming scarce - So I bought a hundred of each while I could.
Glad I did now. |
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ryktnk
Joined: Apr 24, 2008 Posts: 285 Location: london
Audio files: 1
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Posted: Wed May 14, 2014 12:13 pm Post subject:
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AndyR1960 wrote: | I guess it depends what you're using them for. I've subbed 5459's for them in the occasional S&H circuit (watch the pin-out)... seems to work fine.
I noticed several years ago that 2N5457/9s were becoming scarce - So I bought a hundred of each while I could.
Glad I did now. |
Hello
Thanks for the tip, but if the substitute is also
scarce then I am still worried.
Mainly used for S&H in my sequencer module.
But also getting into the idea of making an
FET based phaser.
-ryk |
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steffensen
Joined: Jul 11, 2012 Posts: 103 Location: Sweden
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Posted: Thu May 15, 2014 1:51 am Post subject:
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Yes, this is really annoying. I figured i was gonna try using the SMD version of the 2N5459's as they were a lot easier (and cheaper) to source. But now i discover they are starting to be scarce too.
Havent found anything else that works as good as the 5459's as of yet (been trying lots of subs for it), so yea, i feel bullied. |
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analog_backlash
Joined: Sep 04, 2012 Posts: 393 Location: Aldershot, UK
Audio files: 21
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Posted: Thu May 15, 2014 5:25 am Post subject:
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AndyR1960 wrote: | I noticed several years ago that 2N5457/9s were becoming scarce - So I bought a hundred of each while I could.
Glad I did now. |
Ditto (Well, 2N5457/8 in my case). They are still available (at a price). The cheapest I've seen are from Tayda, but they're out of stock now (surprise, surprise). I cannot vouch for their quality, but I've not had a problem with other Tayda components (so far). A much more expensive source that I know is Cricklewood Electronics. I've bought obsolete components from them before and again they've been OK.
Gary.
http://www.taydaelectronics.com/
http://www.cricklewoodelectronics.com/Cricklewood/home.php |
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mrmrshoes
Joined: Feb 19, 2011 Posts: 73 Location: Newcastle Upon Tyne
Audio files: 4
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Posted: Thu May 15, 2014 5:49 am Post subject:
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I've just stocked up on 50 2n3819 from mouser, cost about £25 ex VAT
http://uk.mouser.com/Search/Refine.aspx?Keyword=2N3819
they is still a decent stock 11000+
mouser seem to be the only major supplier with jfet stock. i hate it when through hole parts go out of production. |
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ryktnk
Joined: Apr 24, 2008 Posts: 285 Location: london
Audio files: 1
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Posted: Thu May 15, 2014 12:47 pm Post subject:
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Hello
Thanks for the tips guys.
Looks like Mouser is the way to go !
-ryk |
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