The 2N3439 is a versatile and reliable bipolar junction transistor (BJT) developed by STMicroelectronics. Designed for high-speed switching applications, this NPN transistor is a fundamental component in a wide range of electronic circuits. Its robust construction ensures stability and longevity, making it a preferred choice for industry professionals and hobbyists alike.

Key Features

• Voltage Capabilities: The 2N3439 is capable of withstanding high voltage, with a collector-base voltage (VCBO) of 300V, collector-emitter voltage (VCEO) of 250V, and emitter-base voltage (VEBO) of 5V.
• Current Handling: It can handle a continuous collector current (IC) of up to 1A, making it suitable for moderate power applications.
• Power Dissipation: With a power dissipation (PD) of 800mW, the 2N3439 can dissipate a reasonable amount of heat generated during operation without compromising performance.
• High Transition Frequency: Featuring a high transition frequency (fT) of 50MHz, this transistor is optimized for high-speed switching, which is essential for applications such as amplifiers and oscillators.
• TO-39 Package: Encased in a metal TO-39 package, the 2N3439 offers excellent thermal conductivity and durability, ensuring a reliable performance in a variety of environmental conditions.

Applications

The 2N3439 is well-suited for a range of applications, including:

• Linear Amplification and Switching
• Audio Amplifiers
• Signal Processing Circuits
• Power Regulators
• Oscillator Circuits

Quality and Reliability

STMicroelectronics is known for its commitment to quality and reliability, and the 2N3439 is no exception. Each transistor is rigorously tested to ensure it meets the high standards expected by consumers. Whether for commercial production or experimental projects, the 2N3439 provides the performance and dependability that engineers require for their electronic designs.