The 2SA812 from Hottech is a PNP type transistor in a 3-Pin SOT-23 RoHS package. It has a current gain of 100mA at 50V, and is ideal for power management, driver circuits, and a wide range of general purpose switching applications. It can be used in switching applications such as touch sensors, stepping motors, light detection, and other specialized applications. With its robust construction and low power dissipation, it is a reliable choice for high-performance electronic designs.