The BD140 is a PNP silicon epitaxial planar transistor designed and manufactured by STMicroelectronics, a global semiconductor leader. This device is part of the BD series, known for their robust performance and reliability in various electronic applications. The BD140 is specifically crafted to suit audio amplification and switching applications, making it a popular choice among audio equipment manufacturers and hobbyists alike.

Key Features

• PNP Transistor: The BD140 is a PNP transistor, which means it is turned on or off by the flow of holes as charge carriers.
• High Current Capability: It can handle collector currents up to 1.5 A, making it suitable for moderate power applications.
• Voltage Ratings: With a collector-emitter voltage (VCEO) of -80V and a collector-base voltage (VCBO) of -100V, it can handle significant voltage levels in circuits.
• Complementary NPN Transistor: The BD140 is often paired with its complementary NPN counterpart, the BD139, for push-pull applications.
• TO-126 Package: Enclosed in a TO-126 package, it provides a good balance between power dissipation and size, suitable for compact designs.

Applications

The BD140 transistor is versatile and can be used in a wide range of applications:

• Audio Amplifiers and Hi-Fi systems
• Driver Stages in Hi-Fi amplifiers and Television Circuits
• Signal Processing Circuits of Television Receivers
• Power Regulators and Output Stages
• Switching Applications

Quality and Reliability

STMicroelectronics ensures that the BD140 meets the highest quality and reliability standards. Each transistor is subjected to rigorous testing and quality control procedures, ensuring consistent performance across the board. This commitment to quality makes the BD140 a trusted component in both commercial and industrial electronic systems.

Environmental Impact

STMicroelectronics is dedicated to minimizing the environmental impact of their products. The BD140 is designed with eco-friendly considerations, complying with international standards such as RoHS (Restriction of Hazardous Substances) and REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals).