BC847C

The BC847C is a general-purpose NPN bipolar junction transistor (BJT) manufactured by Microdiode Electronics (MDD). It is widely used in various electronic applications due to its versatility and reliability. Here’s a detailed description of its characteristics and specifications:

Physical Characteristics:

• Package Type: The BC847C typically comes in a small SOT-23 package, which is a surface-mount device (SMD) that allows for compact circuit designs. The SOT-23 package has three leads, making it easy to integrate into printed circuit boards (PCBs).
• Dimensions: The SOT-23 package dimensions are approximately 2.9 mm x 1.3 mm x 1.1 mm, making it suitable for space-constrained applications.

Electrical Characteristics:

• Type: NPN transistor, which means it can amplify current and is used for switching applications.
• Collector-Emitter Voltage (Vce): The maximum collector-emitter voltage is typically rated at 45V, allowing it to handle a wide range of voltage applications.
• Collector Current (Ic): The maximum collector current is around 100 mA, making it suitable for low to moderate power applications.
• Gain (hFE): The DC current gain (hFE) ranges from 100 to 800, depending on the collector current, which indicates its efficiency in amplifying signals.
• Transition Frequency (fT): The transition frequency is typically around 100 MHz, which allows for high-speed switching applications.

Thermal Characteristics:

• Junction Temperature (Tj): The maximum junction temperature is usually 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 dissipating heat effectively during operation.

Applications:

The BC847C is commonly used in:

• Amplification: It is suitable for audio and RF amplification circuits.
• Switching: The transistor can be used in digital circuits for switching applications, such as in logic gates and relay drivers.
• Signal Processing: It is often found in signal processing circuits due to its high gain and frequency response.

Additional Features:

• Low Noise: The BC847C is designed to operate with low noise levels, making it ideal for sensitive applications.
• High Reliability: The device is built to withstand various environmental conditions, ensuring long-term reliability in electronic circuits.

Conclusion:

The BC847C from Microdiode Electronics is a robust and versatile NPN transistor that is well-suited for a variety of electronic applications, from amplification to switching. Its compact size, high gain, and reliable performance make it a popular choice among engineers and hobbyists alike.