The BC847C is a general-purpose NPN transistor , primarily used in signal amplification and switching applications. It is not associated with a specific brand name as it is a standard component from multiple manufacturers, often available from suppliers like Fairchild, ON Semiconductor, or other similar semiconductor companies.
For the BC847C transistor, its pinout and function are as follows:
Pin Function Specifications:
Pin 1 (Collector): This is the collector terminal of the transistor. The current flows into the collector from the external load. Pin 2 (Base): This is the base terminal. The base current controls the transistor’s operation (switching or amplification). Pin 3 (Emitter): This is the emitter terminal. The current flows out from the emitter to ground (or the negative side of the circuit).Pinout and Packaging:
The BC847C typically comes in a TO-92 package, a small cylindrical package with three leads corresponding to the collector, base, and emitter terminals. TO-92 Package Pinout: Pin 1: Collector Pin 2: Base Pin 3: EmitterCommon FAQs for BC847C Transistor
Q1: What type of transistor is the BC847C? A1: The BC847C is an NPN bipolar junction transistor used for switching and amplification.
Q2: What is the maximum collector current for the BC847C? A2: The BC847C has a maximum collector current of 100mA.
Q3: What is the maximum voltage rating for the BC847C? A3: The maximum voltage rating (Collector-Emitter Voltage) for the BC847C is 45V.
Q4: What are the typical uses of the BC847C transistor? A4: The BC847C is commonly used in small signal applications, such as amplifiers, oscillators, and low power switching.
Q5: How does the BC847C work in a circuit? A5: The BC847C works by controlling the flow of current between the collector and emitter based on the current applied to the base.
Q6: Can the BC847C be used for high-power applications? A6: No, the BC847C is designed for low power and signal-level applications, with a maximum collector current of 100mA.
Q7: What is the purpose of the base pin in the BC847C? A7: The base pin controls the transistor's switching or amplification by regulating the current flowing from the collector to the emitter.
Q8: How do you bias the BC847C in an amplifier circuit? A8: The BC847C is typically biased using a resistor connected between the base and the supply voltage, and the emitter is often connected to ground through a resistor.
Q9: Is the BC847C suitable for digital circuits? A9: Yes, it can be used in digital logic circuits where low current amplification or switching is needed.
Q10: Can the BC847C be used in both AC and DC circuits? A10: Yes, the BC847C can be used in both AC and DC circuits as long as the voltage and current ratings are adhered to.
Q11: What is the significance of the C in the BC847C model number? A11: The "C" indicates that the transistor is a general-purpose device with a moderate current gain, making it suitable for small signal applications.
Q12: What is the current gain (hFE) of the BC847C? A12: The BC847C typically has a current gain (hFE) in the range of 110 to 800, depending on the specific device.
Q13: What is the frequency response of the BC847C? A13: The BC847C can operate effectively in frequencies up to around 250 MHz, though it is mainly used in low-frequency applications.
Q14: Can the BC847C be used in high-speed switching applications? A14: The BC847C can be used in switching applications, but it is not suitable for very high-speed circuits due to its limited frequency response.
Q15: How should the BC847C be stored? A15: The BC847C should be stored in a dry environment, away from extreme temperatures and moisture, to prevent damage.
Q16: Can the BC847C handle large power dissipation? A16: No, the BC847C is rated for a maximum power dissipation of around 500mW, making it unsuitable for high-power applications.
Q17: Is the BC847C suitable for use in a low-noise amplifier? A17: Yes, the BC847C is often used in low-noise amplifier designs due to its good performance in small-signal applications.
Q18: What is the temperature range of the BC847C? A18: The BC847C typically operates within a temperature range of -55°C to +150°C.
Q19: Can the BC847C be used in a Darlington configuration? A19: No, the BC847C is not a Darlington transistor, but it can be used in circuits with other transistors to create a Darlington pair.
Q20: How should I connect the BC847C in a circuit? A20: In most circuits, the emitter is connected to ground, the collector to the load, and the base is controlled with a resistor to regulate the current flow.