In a transistor schematic, if the arrow on the emitter is pointing in, what type of transistor is depicted?

In a transistor schematic, the orientation of the arrow on the emitter is crucial for determining the type of transistor. When the arrow on the emitter is pointing inwards towards the base, it signifies that the transistor is a PNP type.

In a PNP transistor, the arrow indicates the direction of conventional current flow. This flow is from the emitter to the base when the transistor is in active mode. This characteristic is important in distinguishing it from an NPN transistor, where the arrow points outwards, indicating a flow of current from the base to the emitter.

While both PNP and NPN transistors are types of Bipolar Junction Transistors, the specific orientation of the emitter arrow directly identifies a PNP transistor. A Field Effect Transistor operates under different principles and has a distinct structure that does not involve an emitter-base current flow in the same manner. This context highlights the importance of the arrow's direction in correctly classifying the type of transistor in the schematic.