Some help with Chinese J201 FETs?

Chevy

Newbie
Messages
1
Someone recommended getting a bunch of Chinese TO-92 J201's on Ebay, since they are cheap, plentiful, and now hard to come by otherwise. (Trying to stay away from the surface mount option.)
I got them, but am confused by the pinout. The data sheets I've seen all have the gate at one end of the package. When I measure these J201's with an ohmmeter, it seems the gate is the middle lead; I get about 5.6M ohms between the middle lead and each end lead in one polarity, and then infinite ohms between those same leads in the other polarity. Between the 2 outside leads I get infinite ohms in both polarities.

I'm new to JFets... have I got this right that the middle lead must be the gate? If so, why would they be made that way, unconventionally ?

Also, are the Source and Drain interchangeable?

1726862550797.png
 
J201s being cheap and plentiful instantly make me assume they're fake. J201s haven't been cheap or plentiful in a long time. Anyone I know in the diy pedal scene is running on the fumes of our stash of through hole parts or have moved onto smd parts and through hole adaptors.

You can easily buy legit smd J201s pre soldered only adaptor boards. Yes they're more expensive but it's better than wasting money buying fakes and someone else has dealt with the hassle of smd soldering. All you need to do is solder some clipped component legs on and you're good to go.


 
Back
Top