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?
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?