The BD138, manufactured by STMicroelectronics, is a PNP power transistor that is part of the BD series known for their robust performance and reliability. It is designed for use in power amplification and switching applications, catering to a wide range of electronic circuits.

Key Features

• Voltage & Current: The BD138 is characterized by a collector-emitter voltage (VCEO) of -60V and a collector current (IC) of up to -1.5A, making it suitable for moderate power applications.
• Power Dissipation: With a power dissipation (Ptot) of 12.5W, this transistor can handle a fair amount of power, which is essential for various amplification tasks.
• Complementary NPN Transistor: It is complemented by the BD139 (NPN) transistor, allowing for use in push-pull configurations, which are common in audio amplifiers and power drivers.
• Package: The BD138 is available in a TO-126 package, which is a medium-sized, through-hole component that is easy to handle and mount on printed circuit boards.

Applications

The BD138 transistor is versatile and can be implemented in various applications, including:

• Audio frequency amplifier stages
• Driver stages in hi-fi amplifiers and television circuits
• Linear and switching industrial equipment
• Power regulation modules

Quality and Reliability

STMicroelectronics ensures that the BD138 meets high-quality standards, with rigorous testing and validation processes in place. The device is designed to operate within a junction temperature range of -65°C to 150°C, providing stable performance across a wide range of environmental conditions.

Environmental Compliance

The BD138 is compliant with RoHS (Restriction of Hazardous Substances) and is free from environmentally harmful substances. This compliance reflects STMicroelectronics' commitment to environmental stewardship and the production of eco-friendly products.