WTB or Swap For - USA - I need some 2N5457 JFETs

[t1d]

I need some 2N5457 JFETs to play with. The quantity depends on what you are willing to part with. Any footprint TH/SMD will do.

Must be genuine OEM components sourced from known component supplier = Mouser/Digikey/Element14/Etc, not from Ebay/Amazon/AliExpress/Etc.

I like the idea of our community supporting each other, so I have lots of components to swap. Or, I can pay you something, through Pay Pal.

What might you have and what might you need. Please send me a private message. Thanks!

[IconicPCB]

https://www.rockby.com.au/semidiscretesearch.cfm?select=23&subcode=466

Take your pick.

I am surprised You cant find anything locally in the states.

[Kleinstein]

There are way more different part numbers than different JFET types.  In addition the JFETs usually show a large spread and most circuit much thus tolerate quite some variations. So chances are good that one can use a different type of JFET. Fairchild AN6609 is a nice resource listing similar FETs using the same geometry.
A SK208 is somewhat similar.  Depending on the actual use other types may be a better choice: e.g. SK3557 for audio, 2N4416 / J310 for more higher frequency use.

[t1d]

https://www.rockby.com.au/semidiscretesearch.cfm?select=23&subcode=466

Take your pick.

I am surprised You cant find anything locally in the states.

Thanks for your reply. My regular supplier is Mouser and they are out of this one model of jfet. I am just trying to avoid the shipping cost on a few $0.30USD parts that I don't absolutely have to have right this minute. Meaning, it is better to make a larger combined order from Mouser, than a separate order from another supplier. However, reputable US suppliers are definitely heavily depleted of components, presently. So, it is more fun to reach out to the EE community in the spirit of comradery.

[t1d]

There are way more different part numbers than different JFET types.  In addition the JFETs usually show a large spread and most circuit much thus tolerate quite some variations. So chances are good that one can use a different type of JFET. Fairchild AN6609 is a nice resource listing similar FETs using the same geometry.
A SK208 is somewhat similar.  Depending on the actual use other types may be a better choice: e.g. SK3557 for audio, 2N4416 / J310 for more higher frequency use.

Great to hear from you, Kleinstein!!! Good information, as always, too. I will check the availability of these other models. IIRC, J310 is also out, at Mouser. But, it is better to combine several components into a bigger order, to justify the shipping cost. Mouser is mostly out of the other things that I might order, presently, so I can't even make a combined order, even if I find a substitute jfet. Cheers.

[edavid]

Thanks for your reply. My regular supplier is Mouser and they are out of this one model of jfet. I am just trying to avoid the shipping cost on a few $0.30USD parts that I don't absolutely have to have right this minute. Meaning, it is better to make a larger combined order from Mouser, than a separate order from another supplier. However, reputable US suppliers are definitely heavily depleted of components, presently. So, it is more fun to reach out to the EE community in the spirit of comradery.

Is their website inventory wrong?

https://www.mouser.com/ProductDetail/Central-Semiconductor/2N5457-BK-PBFREE

Or how about the J113 for a cheaper alternative?

https://www.mouser.com/ProductDetail/onsemi-Fairchild/J113

[t1d]

Hi, edavid. Thank you for your help.

Is their website inventory wrong?
https://www.mouser.com/ProductDetail/Central-Semiconductor/2N5457-BK-PBFREE

Yes, I saw those, but they are $1.60 each for a $0.30 part.

Or how about the J113 for a cheaper alternative?
https://www.mouser.com/ProductDetail/onsemi-Fairchild/J113

I did not know about this alternative. I will check it out. Cheers!

[Kleinstein]

The J113 is a bit larger (more capacitance and higher Gm), but just as a cheap part for general experiments it is OK. Very similar ones are PN4393 / mmbf4393 ond BSR58.

[guenthert]

For older parts I'd go to Jameco:
https://www.jameco.com/z/2N5457-New-Jersey-Semiconductor-Transistor-2N5457-TO-92-JFET-N-Channel-25-Volt_253948.html

[edavid]

For older parts I'd go to Jameco:
https://www.jameco.com/z/2N5457-New-Jersey-Semiconductor-Transistor-2N5457-TO-92-JFET-N-Channel-25-Volt_253948.html

OP already said the current production parts from Mouser were too expensive, so why would he pay even more for surplus parts from Jameco 

[bd139]

MMBF5485/86 are same series and should be cheaper.

Old JFETs are expensive. Get used to it.

[edavid]

MMBF5485/86 are same series and should be cheaper.

2N5484/MMBF5484 etc. are out of production and much harder to find than 2N5457 

[bd139]

FGS the damn things are dropping like flies.

It's probably the same die as a mmbf4416. I seem to remember reading they are same process, just different binning.

The ubiquitous MPF102, the world's crappest FET, is the same just not even binned. The bad man in me considered relabelling a bunch of far superior FETs to sell to hams as MPF102's 

[edavid]

It's probably the same die as a mmbf4416. I seem to remember reading they are same process, just different binning.

Good point, MMBF4416A is available from Mouser and would be a decent choice for OP.