Quick stupid question: difference between 2n222 and 2n222a transistors?

No ! Come back here to read the replies. Are you too lazy to do that ?

Usenet doesn't exist for your personal convenience.

Graham

You mean 2N2222 don't you ?

Why not read a data sheet ?

And why do you want to use such an ancient inferior device ?

And don't post to non-existent groups either !

Graham

I think you mean 2N2222...

From memory the 2N2222 (TO18) has Vceo=30V and the A version has Vceo=40V. Therefore, you can use the A version in place of the 2222 but not necessarily the other way round. If Vce supply voltage is less than 30V then either will do.