BC846B-7-F

The BC846B-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 BC846B-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 applications where space is a constraint.

Electrical Characteristics:

• Transistor Type: NPN
• Collector-Emitter Voltage (Vce): The maximum collector-emitter voltage is rated at 50V, allowing it to handle a wide range of voltage applications.
• Collector Current (Ic): The maximum collector current is rated at 100 mA, making it suitable for low to moderate current applications.
• DC Current Gain (hFE): The transistor has a DC current gain (hFE) ranging from 100 to 600, depending on the collector current, which indicates its efficiency in amplifying signals.
• Power Dissipation (Pd): The maximum power dissipation is typically around 300 mW, which is important for thermal management in circuit design.

Performance Characteristics:

• Frequency Response: The BC846B-7-F is capable of operating at frequencies up to several hundred MHz, making it suitable for RF applications as well as audio and general signal amplification.
• Switching Speed: It has a fast switching speed, which is beneficial for applications requiring quick on/off control.

Applications:

The BC846B-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 electronic circuits where small size and efficiency are required.

Environmental and Compliance:

• RoHS Compliant: The BC846B-7-F is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring that it is free from certain hazardous materials.
• Operating Temperature Range: The device typically operates within a temperature range of -55°C to +150°C, making it suitable for a variety of environmental conditions.

Conclusion:

The BC846B-7-F from Diodes Incorporated is a versatile and reliable NPN transistor that is well-suited for a wide range of electronic applications. Its compact size, high gain, and robust electrical characteristics make it a popular choice among engineers and designers in the electronics industry.