Searching for JFETs is frustrating. When I put the term into the front-page search, it returns Unijunction Transistors (UJT), a seldom-used and baffling part type. This is like searching for zebras in a database of horses and finding unicorns!
I expect to find are parts such as PMBFJ108, MMBF4416A, and MMBF4393.
These are in the "Small Signal FET" and "RF Small Signal FET" categories.
The work-around is to narrow down the category "Small Signal FET" to include only JFETs is to set "FET Technology" to "Junction".
This trick also works for the "RF Small Signal FET" category, if you can find the category.
The only way I have been able to navigate to this category is to drill down through the front page Transistor category.
I would like the JFET search to return tabbed results for the Small Signal FET and RF Small Signal FET categories. These tabs should have the 'Technology=junction' already selected. If other FET categories also have 'Technology=junction', these could also be included. There should be no bipolar parts returned, because bipolar transistors are not FETs. There probably shouldn't be any UJTs returned either, because these are not really so much like FETs.
According to Wikipedia:
"The structure of a UJT is similar to that of an N-channel JFET, but P-type (gate) material surrounds the N-type (channel) material in a JFET, and the gate surface is larger than the emitter junction of UJT. A UJT is operated with emitter junction forward- biased while the JFET is normally operated with the gate junction reverse-biased."
