BC846A-7-F

The BC846A-7-F is a small-signal NPN bipolar junction transistor (BJT) manufactured by Diodes Incorporated. It is designed for general-purpose amplification and switching applications. Here’s a detailed description of its key features and specifications:

Package and Physical Characteristics:

• Package Type: The BC846A-7-F is typically available in a SOT-23 package, which is a compact, surface-mount package that allows for efficient use of board space.
• Dimensions: The SOT-23 package generally measures approximately 2.9 mm x 1.3 mm x 1.1 mm, making it suitable for high-density applications.

Electrical Characteristics:

• Transistor Type: NPN
• Maximum Collector-Emitter Voltage (Vce): The BC846A-7-F can handle a maximum Vce of 65V, making it suitable for a wide range of applications.
• Maximum Collector Current (Ic): It has a maximum collector current rating of 100 mA, allowing it to drive small loads effectively.
• DC Current Gain (hFE): The transistor exhibits a DC current gain (hFE) ranging from 100 to 600, depending on the collector current, which indicates its efficiency in amplifying signals.
• Transition Frequency (fT): The transition frequency is typically around 250 MHz, which allows for high-speed switching applications.

Thermal Characteristics:

• Junction Temperature (Tj): The maximum junction temperature is rated at 150°C, providing a good thermal margin for various operating conditions.
• Thermal Resistance: The thermal resistance from junction to ambient is low, which helps in managing heat dissipation during operation.

Applications:

The BC846A-7-F is widely used in various applications, including:

• Signal amplification in audio and RF circuits.
• Switching applications in digital circuits.
• Level shifting and interfacing between different voltage levels.
• General-purpose low-power amplification tasks in consumer electronics.

Additional Features:

• Low Noise: The transistor is designed to operate with low noise, making it suitable for audio and sensitive signal applications.
• High Reliability: As a product from Diodes Incorporated, the BC846A-7-F is manufactured to meet high reliability standards, ensuring consistent performance over time.

Conclusion:

The BC846A-7-F is a versatile and reliable NPN transistor that is well-suited for a variety of electronic applications. Its compact size, high voltage and current ratings, and excellent gain characteristics make it a popular choice among engineers and designers in the electronics industry.