Datasheet Transistor Jun 2026

| Mistake | Consequence | | :--- | :--- | | Assuming ( h_FE ) is constant | Base drive insufficient, transistor operates in linear region, overheating. | | Using ( V_GS(th) ) as the turn-on voltage (MOSFET) | MOSFET only partially on, high ( R_DS(on) ), thermal runaway. | | Ignoring SOA for switching loads (e.g., motors, lamps) | Transistor fails during turn-on or turn-off transients. | | Forgetting temperature derating | Device fails at high ambient temperature despite room-temperature tests. | | Mixing up pinouts | Incorrect PCB layout; device may short or invert. (Datasheet pinout diagram is law.) |

): The tiny "leakage" current that flows even when the transistor is supposed to be fully off. 3. Dynamic and Switching Characteristics datasheet transistor