2N2222 Transistor Replacement: CTPN 2222 Compatibility Inquiry

trymer01 wrote:

Bieda z nędzą wrote:

Plain BC338 replaces it perfectly.

That is not true!
In normal use - e.g. low frequency, control in the power supply or as a relay switch, etc. - yes, BC337 etc. will replace it. But 2N2222 is a switch transistor - fast and in this role no BC can replace it. And here the author gave no application, he asks for a full replacement.

Bieda z nędzą wrote:

Humans, 2N2222 is a 60s transistor, most modern low current bjt has better parameters.

In simple terms, it can be said that everything good at BJT was "invented" in the 1960s (and in the early 1970s) - including 2N2222, 2N2369, 2N3055, 2N2219, BC, BF, BU ... later only the epiplanary technology (processes) was changed and improved, in the 90s special high-current and high-VFEat high-current transistors such as 2SC5706, etc. were developed.
And therefore

psiata wrote:

Maybe it is already a monument, but as you can see it is still available.

because nothing better in this category has been produced.

trymer01 wrote:

Bieda z nędzą wrote:

Plain BC338 replaces it perfectly.

That is not true!
In normal use - e.g. low frequency, control in the power supply or as a relay switch, etc. - yes, BC337 etc. will replace it. But 2N2222 is a switch transistor - fast and in this role no BC can replace it. And here the author gave no application, he asks for a full replacement.

I will agree on this with the trimmer col. 2N2222 is a typical fast overwhelming transistor and it cannot be replaced by ordinary transistors of the BC series. e.g. BC337.