The BC547 is a popular general-purpose NPN transistor and in this article we will explore specifications of this transistor in BC547 datasheet. Its versatile nature and reliable performance make it an essential component in many applications.
Features of BC547
NPN Transistor: It is an NPN transistor, which means it operates with a positive voltage at the collector concerning the emitter.
Low Noise: The BC547 exhibits low noise characteristics, making it suitable for sensitive amplifier stages and audio circuits.
High DC Current Gain (hFE): This transistor boasts a high DC current gain, typically ranging from 110 to 800, allowing it to amplify weak signals effectively.
Low Saturation Voltage: The BC547 features a low saturation voltage, which minimizes energy loss during switching operations and enhances efficiency.
Characteristics in BC547 Datasheet
Maximum Ratings: The datasheet specifies maximum ratings for parameters such as collector-emitter voltage (VCEO), collector-base voltage (VCBO), emitter-base voltage (VEBO), collector current (IC), power dissipation (Ptot), and temperature range.
Collector Current (IC): The maximum continuous collector current for BC547 is 100mA, which defines its current-carrying capacity.
Power Dissipation (Ptot): BC547 can handle a maximum power dissipation of 500mW, indicating its ability to dissipate heat under specific conditions.
Transition Frequency (fT): BC547 typically has a transition frequency of 150MHz, which denotes its high-frequency performance for amplifier applications.
Collector-Emitter Saturation Voltage (VCE(sat)): The datasheet provides VCE(sat) values at various IC currents, enabling designers to evaluate its switching characteristics accurately.
Base-Emitter Voltage (VBE): BC547 typically has a base-emitter voltage of around 0.65V at a base current of 10mA.
Package Type: BC547 comes in a TO-92 package, which is a standard through-hole package for easy mounting on PCBs.
Operating Temperature: The datasheet specifies the recommended operating temperature range, typically from -55°C to +150°C, ensuring reliable operation under varying environmental conditions.
Storage Temperature: BC547 can be stored in a temperature range of -55°C to +150°C without compromising its performance.
Electrical Characteristics: The datasheet provides detailed electrical characteristics, including current gains at specific collector currents, saturation voltages, and cutoff frequencies.
Where to Buy BC547 Transistor
Kammas BC547C 50PCS + BC557C 50PCS BC557 BC547 TO-92 Small Signal Transistors
100PCS Transistor BC547C BC547 0.1A/45V NPN Transistor TO-92
Kammas 100pcs/lot Transistor DIP BC547 TO-92 0.1A 45V NPN
1pcs/lot BC547 BC547B BC547C TO-92
100pcs/lot Transistor BC547C BC547 0.1A/45V NPN Transistor TO-92
Kammas 10Values x20 200pcs TO-92 Transistor Assortment Assorted Kit BC327 BC337 BC517 BC547 BC548 BC549 BC550 BC556 BC557 BC558
Applications of BC547
Amplifiers: BC547 is widely used in audio amplifiers, signal amplifiers, and voltage amplifiers due to its low noise and high gain characteristics.
Switching Circuits: Its fast switching speed and low saturation voltage make BC547 suitable for driving small loads and digital switching applications.
Oscillators: BC547 can be used in oscillator circuits for generating stable and low-frequency signals.
Voltage Regulation: It is employed in voltage regulator circuits to stabilize output voltages in power supplies.
Sensor Interface: BC547 acts as an interface between sensors and microcontrollers, converting weak sensor signals into usable voltage levels.
Audio Pre-amplification: Its low noise figure and amplification capabilities make BC547 an excellent choice for audio pre-amplification stages.
The BC547 datasheet reveals its versatility, making it a widely used NPN transistor in various electronic applications. Its small signal amplification, low noise, high gain, and complementary pairing features contribute to its popularity in the electronics industry.
Engineers and hobbyists can confidently incorporate BC547 in their designs, knowing it offers reliable performance across a broad range of applications.
- Floating Gate Transistor: Best Features & Applications
- TIP120 Transistor Pinout, Datasheet and Equivalent
- TIP122 Transistor Pinout, Datasheet & Applications
- Transistors BC547: Important Guide to Pinout
- C1815 Datasheet: Important Features to Know About
Subscribe to our Newsletter “Electrical Insights Daily” to get the latest updates in Electrical Engineering. You can also Follow us LinkedIn and Facebook to see our latest posts on Electrical Engineering Topics.