J201 discontinued?

[POTL]

Hello
I faced a shortage of j201, now it is available in a small amount and under the order. Even in a large store like tayda it is not there now. I searched the forum and came across reports of delays in deliveries from different dealers. Messages were at the end of last year. What is the situation like now? Does it make sense to wait for supplies to the stores or is this transistor no longer produced?

Perhaps there are available analogues?

Has anyone tried mmbf4393? Catalinbread uses them, how are they? Noise, dynamic range, sound.

[anotherjim]

https://www.onsemi.com/PowerSolutions/product.do?id=MMBFJ201
It's still an active product. Smd only, the thru hole part has been discontinued for some time.
Whatever the reason for the shortage, it isn't because it's been killed off.

[J0K3RX]

They are still available in through hole but, the good old days when they were $0.54 each has been discontinued... 

https://www.mouser.com/ProductDetail/InterFET/J201?qs=OxRSArmBDfyvD8SbvWteMw%3D%3D

[POTL]

https://www.onsemi.com/PowerSolutions/product.do?id=MMBFJ201
It's still an active product. Smd only, the thru hole part has been discontinued for some time.
Whatever the reason for the shortage, it isn't because it's been killed off.

Thank you, I hope this is a temporary shortfall.
SMD is more than convenient for me.

[POTL]

They are still available in through hole but, the good old days when they were $0.54 each has been discontinued... 

https://www.mouser.com/ProductDetail/InterFET/J201?qs=OxRSArmBDfyvD8SbvWteMw%3D%3D

Price bites, plus shipping.
More recently, mmbfj201 were available from my dealer at a price of $ 0.08-0.1 apiece and with a huge stock in stock.
I think to try the more affordable j113 and mmbf4393 for my amp in a box, maybe they will be a worthy replacement.

[nation]

They are still available in through hole but, the good old days when they were $0.54 each has been discontinued... 

https://www.mouser.com/ProductDetail/InterFET/J201?qs=OxRSArmBDfyvD8SbvWteMw%3D%3D

Price bites, plus shipping.
More recently, mmbfj201 were available from my dealer at a price of $ 0.08-0.1 apiece and with a huge stock in stock.
I think to try the more affordable j113 and mmbf4393 for my amp in a box, maybe they will be a worthy replacement.

Good price. After months of delays Tayda finally got new stock of mmbfj201 (8,000 pieces or so) last month but sold out within a few weeks. Around 30 cents each.

[merlinb]

Hundreds of FETs are going obsolete. No doubt you'll be able to buy them in hobby quantities for years to come, just not from the major component suppliers.
https://media.digikey.com/pdf/PCNs/Vishay/PCN-SIL-0052008%20Rev%202.pdf

[J0K3RX]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

[Ice-9]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

Yeah I've used many 2SK208-R  very nice.

[MetalGuy]

Yeah I've used many 2SK208-R  very nice.

As used by AMT in their Legend series of pedals.

[POTL]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

2SK208
VGS Off 0,5-4
quite a large spread of values

[POTL]

Yeah I've used many 2SK208-R  very nice.

As used by AMT in their Legend series of pedals.

AMT is not the best example.
I am from Russia and the attitude towards the company is very ambiguous, the quality is good, but many people criticize them. 

[POTL]

What you think about mmbf4393?

They are used by Catalinbread, they are relatively lego available, a very nice price of 0.11-0.23 cents.
I love the Fetzer ROG based circuitry, I always liked how the sound is cleared using the guitar volume knob and a good signal-to-noise ratio.
How are these transistors?
What do you say about J113?

[J0K3RX]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

2SK208
VGS Off 0,5-4
quite a large spread of values

The 2SK208 datasheet can be misleading if you don't read the "Note" under the electrical characteristics. 
There are 4 different variations of this jfet that are identifiable by the marking JR, JO, JY and JGR
Those are the IDSS classifications: 
2SK208-R = JR = 0.30 to 0.75 mA < Not that far off from the beloved MMBFJ201
2SK208-O = JO = 0.60 to 1.40 mA
2SK208-Y = JY = 1.2 to 3.0 mA
2SK208-GR = JGR = 2.6 to 6.5 mA

So, when you are looking at the IDSS and you see the min 0.3 mA and the max 6.5 mA that is the range of all 4 combined.
The same goes for the VGS Off −0.4 min / −5.0 max.  The VGS Off for the 2SK208-R should be in the ball park of -0.4 to -1.5

If ya ask me, it's kinda stupid how they combined them all together like that...    But, if you can get past that they are really consistant, easy to work with and sound damn good!

Another stupid Toshiba trick I noticed, check the specs for 2SK879

[rankot]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

Have you tried 2SK208-Y instead?

[POTL]

I don't know why anybody hasn't started using these? I prefer them over the J201

https://www.mouser.com/ProductDetail/Toshiba/2SK208-RTE85LF?qs=sGAEpiMZZMv4z0HnGdrLjnwNZ9rg4nWl40oK3%2FTw9Rsiw81qNSYyVQ%3D%3D

https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/2SK208-R-TE85LF/2SK208-R-TE85LF-CT-ND/4503201

2SK208
VGS Off 0,5-4
quite a large spread of values

The 2SK208 datasheet can be misleading if you don't read the "Note" under the electrical characteristics. 
There are 4 different variations of this jfet that are identifiable by the marking JR, JO, JY and JGR
Those are the IDSS classifications: 
2SK208-R = JR = 0.30 to 0.75 mA < Not that far off from the beloved MMBFJ201
2SK208-O = JO = 0.60 to 1.40 mA
2SK208-Y = JY = 1.2 to 3.0 mA
2SK208-GR = JGR = 2.6 to 6.5 mA

So, when you are looking at the IDSS and you see the min 0.3 mA and the max 6.5 mA that is the range of all 4 combined.
The same goes for the VGS Off −0.4 min / −5.0 max.  The VGS Off for the 2SK208-R should be in the ball park of -0.4 to -1.5

If ya ask me, it's kinda stupid how they combined them all together like that...    But, if you can get past that they are really consistant, easy to work with and sound damn good!

Another stupid Toshiba trick I noticed, check the specs for 2SK879

thank

It's funny, but my supplier has 208-R for sale, I hope that he indicates the correct marking)

[Gus]

I have noticed small SMD JFETS marked XG(2SK117 as best I can tell) in China built condenser microphones instead of 2sk170s that were common before
maybe this part might be something to look for

[POTL]

BF862 looks good
VGS Off 0.3-1.2

Small-Bear recommends PF5102
VGS-Off 0.7-1.6
It looks cool, my dealer offers them at $ 0.04 looks sweet.

[pinkjimiphoton]

i just use j112's instead. get 'em at mouser. cheap and consistent.

[POTL]

i just use j112's instead. get 'em at mouser. cheap and consistent.

How is the sound?
Noisier or the same?
I love J201 for a good reaction to the loudness of a guitar, how are things with J112?