PNP or NPN ?

• The arrow is always pointing to the negative
• The emitter always has an arrow
• Ic and Ie always flow in the same direction and in the direction of the black arrow, the same arrow that tell us whether the transistor is NPN or PNP.
  
 

 This arrow always tell us whether the transistor is PNP or NPN!!!

Περιοχές λειτουργίας του BJT Τρανζίστορ

Περιοχή λειτουργίας                    EBJ                             CBJ

1. Αποκοπή                                   Ανάστροφα                      Ανάστροφα
2. Ενεργός                                        Ορθά                            Ανάστροφα
3. Κορεσμός                                      Ορθά                                Ορθά

Forward Bias

In forward bias,the p-type is connected with the positive terminal and the n-type is connected with the negative terminal