BD139 Transistor

Overview

Product Overview The BD139 is a high-performance NPN bipolar junction transistor (BJT) designed for various switching and amplification applications. With its robust construction and reliable performance, the BD139 is suitable for use in power amplifiers, switching circuits, and other electronic applications that require a dependable transistor. Its ability to handle moderate loads makes it a popular choice among engineers and hobbyists. Specifications

• Model: BD139
• Type: NPN
• Collector-Emitter Voltage (Vce): 80V
• Collector Current (Ic): 1.5A
• Power Dissipation (Pd): 0.8W
• Current Gain (hFE): 40 to 320 (depending on the operating conditions)
• Transition Frequency (fT): 150 MHz
• Package Type: TO-220

Key Features

• High Voltage and Current Ratings: Capable of handling up to 80V and 1.5A, making it suitable for a variety of applications
• Wide Range of Applications: Ideal for use in power amplifiers, audio amplifiers, and general-purpose switching applications
• Thermal Stability: Features good thermal stability for reliable performance under varying temperatures
• Easy to Use: Simple pin configuration and TO-220 package for easy integration into circuits

Applications

• Amplifiers: Commonly used in audio and radio frequency amplifiers
• Switching Circuits: Perfect for driving loads in relay and motor applications
• Signal Processing: Suitable for signal amplification in various electronic devices
• Power Management: Used in power supply circuits and voltage regulation

Why Choose Our BD139 Transistor? The BD139 transistor is a trusted component for electronic projects due to its reliability, versatility, and performance. Whether you're working on a simple DIY project or a more complex circuit design, the BD139 provides the necessary specifications to ensure optimal functionality.