Pinout Issues with 2N2222, PN2222, P2N2222 transistors

It is a variant of the To-92 case.
 

Attachments

  • Screenshot 2021-05-26 at 14.48.46.png
    Screenshot 2021-05-26 at 14.48.46.png
    105.6 KB · Views: 108
I’ve never heard of a plastic 2222 being anything other than EBC. But anything is possible as I haven’t tried every possible source for them. Some manufacturers will do CBE for TO-92. In the metal can, the tab is the emitter so you will always know. If in doubt, put it on hFE test. Reverse hFE is low.

Some former Jap types now made by Fairchild/ON (or at least were 6 months ago) are available in both EBC and ECB. Different suffix on the part #. I think those types are all on the chopping block. Some are probably gone already.