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Datasheet
General Purpose NPN Small-Signal Transistor for Switching and Amplification in Compact Electronic Circuits
The BC847 is a widely used general-purpose NPN bipolar junction transistor designed for low-power switching and signal amplification applications. Manufactured by several semiconductor companies including Nexperia and onsemi, this transistor is ideal for compact surface-mount electronic designs requiring reliable performance and efficient signal control.
With a maximum collector-emitter voltage of 45V and a collector current rating of up to 100mA, the BC847 is commonly used in signal processing, switching circuits, driver stages, and low-power amplification tasks. Its small SOT-23 package allows efficient PCB space utilisation while maintaining stable electrical performance. The transistor is frequently used in consumer electronics, embedded systems, industrial control circuits, and communication devices.
Key Features
- NPN Bipolar Transistor – Suitable for general-purpose switching and signal amplification.
- 45V Collector-Emitter Voltage – Handles moderate voltage levels in small-signal circuits.
- 100mA Collector Current – Supports typical low-current switching applications.
- Low Power Dissipation – Maximum power dissipation of 200 mW.
- High Current Gain Options – Available in multiple gain groups for flexible design use.
- Compact SOT-23 Package – Surface-mount package suitable for high-density PCB layouts.
- Fast Switching Capability – Ideal for digital switching and logic-level control circuits.
- Reliable Operation – Commonly used in industrial, consumer, and embedded electronics.
