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BC847C

BC847C Description

The BC847C from Diotec Semiconductor is a high-performance NPN bipolar junction transistor (BJT) designed for surface-mount applications. Packaged in a compact SOT23-3 format, it offers a collector-emitter voltage (Vce) of 45V and a maximum collector current (Ic) of 100mA, making it suitable for low-power amplification and switching tasks. With a transition frequency (fT) of 300MHz, it delivers excellent high-frequency performance, while its low saturation voltage (600mV @ 5mA, 100mA) ensures efficient operation in switching circuits. The device boasts a high DC current gain (hFE ≥ 420 @ 2mA, 5V), enhancing signal amplification accuracy.

BC847C Features

• High Voltage Rating: 45V Vce for robust performance in various circuits.
• Low Saturation Voltage: 600mV @ 5mA, 100mA minimizes power loss in switching applications.
• High Current Gain: hFE ≥ 420 @ 2mA, 5V ensures precise signal amplification.
• Fast Switching: 300MHz transition frequency for high-speed applications.
• Low Leakage Current: 15nA (ICBO) enhances efficiency in low-power designs.
• Surface-Mount Package: SOT23-3 for space-constrained PCB layouts.
• RoHS Compliance: Not applicable, but meets industry standards for reliability.

BC847C Applications

The BC847C excels in:

• Signal Amplification: Audio preamps, sensor interfaces, and RF stages due to its high hFE.
• Switching Circuits: Relay drivers, LED controllers, and logic-level converters thanks to low Vce(sat).
• High-Frequency Designs: Oscillators, mixers, and communication modules leveraging its 300MHz fT.
• Portable Electronics: Battery-operated devices where low leakage and efficiency are critical.
• Automotive & Industrial Systems: Robust voltage handling makes it suitable for harsh environments.

Conclusion of BC847C

The BC847C is a versatile NPN transistor combining high gain, low saturation voltage, and fast switching in a compact SOT23-3 package. Its 45V rating and 300MHz bandwidth make it ideal for amplification, switching, and high-frequency applications, outperforming similar models in efficiency and reliability. Whether in consumer electronics, automotive systems, or industrial controls, the BC847C delivers consistent performance, making it a preferred choice for engineers seeking a balance of power and precision.