Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
If you mean transition frequency, the 2N2222 is specified as minimum 250MHz but you can get other types that work at several tens of GHz, maybe 250 or more times faster.
A quick search showed me that the 2N2222 was introduced in 1962 (54 years ago) as a general purpose transistor. During my long electronics career I worked with many audio, radio and video products and it was never used in any of them. If you want a fast transistor then use a fast transistor, not a general purpose one.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.