Tag: Transistors

Unijunction Transistor Features and Operation

The unijunction transistor (UJT) is a three terminal, single-junction device which exhibits negative resistance and switching characteristics totally unlike those of conventional bipolar transistors.

The UJT consists of a bar of n-type having ohmic contacts designated Base 1 (B… Read more

Bipolar Junction Transistors (BJT)

By placing two PN junctions together we can create a bipolar junction transistor. In a PNP transistor the majority charger carriers are holes and typically germanium is favored for these devices. In NPN transistors the majority charger carriers are electrons; … Read more