BC847BW

The BC847BW is a small-signal NPN bipolar junction transistor (BJT) manufactured by Yangjie Electronic Technology. It is designed for various applications, including amplification and switching in electronic circuits.

Physical Characteristics:

• Package Type: The BC847BW typically comes in a SOT-23 package, which is a compact, surface-mount design that allows for efficient use of space on printed circuit boards (PCBs).
• 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.
• Lead Configuration: The transistor has three leads, which are usually designated as the collector (C), base (B), and emitter (E). The leads are arranged in a specific order to facilitate easy integration into circuits.

Electrical Characteristics:

• Maximum Collector Current (Ic): The BC847BW can handle a maximum collector current of around 100 mA, making it suitable for low-power applications.
• Collector-Emitter Voltage (Vce): It has a maximum collector-emitter voltage rating of about 45V, allowing it to operate in a variety of voltage environments.
• Gain (hFE): The transistor exhibits a current gain (hFE) typically ranging from 100 to 600, depending on the specific operating conditions, which makes it effective for amplification purposes.
• Transition Frequency (fT): The BC847BW has a transition frequency of approximately 100 MHz, indicating its capability for high-frequency applications.

Applications:

The BC847BW is widely used in:

• Signal Amplification: It is commonly employed in audio and radio frequency amplification circuits.
• Switching Applications: The transistor can be used in digital circuits for switching tasks, such as turning on/off loads.
• General Purpose: Its versatility allows it to be used in various electronic devices, including consumer electronics, automotive applications, and industrial equipment.

Thermal Characteristics:

• Junction Temperature: The maximum junction temperature is typically around 150°C, which provides a good thermal margin for reliable operation in various environments.
• Thermal Resistance: The thermal resistance from junction to ambient is low, allowing for efficient heat dissipation during operation.

Conclusion:

The BC847BW from Yangjie Electronic Technology is a reliable and versatile small-signal NPN transistor suitable for a wide range of electronic applications. Its compact size, robust electrical characteristics, and ease of integration make it a popular choice among engineers and designers in the electronics industry.