BD140 GENERAL-PURPOSE PNP TRANSISTORS (PACK OF 10) 

The BD140 is a general-purpose PNP bipolar junction transistor (BJT) designed for medium-power electronic switching and amplification applications. This pack contains 10 BD140 transistors commonly used in analog circuits, audio amplifiers, motor drivers, voltage regulators, and embedded electronic systems.

The transistor operates by controlling the flow of current between the collector and emitter terminals through a small base current. As a PNP transistor, it is typically used in negative voltage switching and complementary transistor pair circuits along with NPN transistors such as BD139.

The BD140 is available in a TO-126 package that provides better heat dissipation and supports higher current handling compared to small signal transistors. It offers reliable performance, moderate power handling capability, and stable switching characteristics for various electronic applications.

These transistors are widely used in power amplifier circuits, power supply systems, robotics projects, DIY electronics, educational experiments, automation systems, and electronic repair applications.