Transistor Schéma !!top!! Online

The arrow in the symbol always points from the P-type material to the N-type material, indicating the direction of conventional current flow (e.g., pointing out of the emitter in an NPN transistor).

| Configuration | BJT | FET | Voltage Gain | Current Gain | Phase (In/out) | | :--- | :--- | :--- | :--- | :--- | :--- | | Common Emitter / Source | NPN / NMOS | Medium-High | High | Inverted (180°) | | Common Collector / Drain (Emitter/Source Follower) | NPN / NMOS | ≤1 | High | Non-inverted | | Common Base / Gate | NPN / NMOS | High | ≤1 | Non-inverted | transistor schéma