Taiwan Semiconductor

BC847C

BC847C Description

The BC847C from Taiwan Semiconductor Corporation is a high-performance NPN bipolar junction transistor (BJT) designed for surface-mount applications. Packaged in a compact SOT-23 form factor, it offers a collector-emitter voltage (Vce) rating of 45V and a maximum collector current (Ic) of 100mA, making it suitable for low-power amplification and switching tasks. With a transition frequency of 100MHz, it delivers excellent high-frequency performance, while its low Vce saturation voltage (500mV @ 5mA, 100mA) ensures efficient switching operation. The device is RoHS3 compliant and adheres to REACH and EAR99 regulations, ensuring environmental and export compliance.

BC847C Features

• High DC Current Gain (hFE): Minimum 420 @ 2mA, 5V, ensuring reliable amplification in signal processing circuits.
• Low Leakage Current: Collector cutoff current (ICBO) as low as 100nA, enhancing energy efficiency.
• Compact & Reliable: SOT-23 package enables high-density PCB designs while maintaining robustness.
• Wide Operating Range: Supports -55°C to +150°C junction temperature, suitable for industrial environments.
• Low Saturation Voltage: 500mV @ 5mA, 100mA, optimizing power efficiency in switching applications.
• High Transition Frequency: 100MHz enables stable performance in RF and high-speed circuits.

BC847C Applications

The BC847C is ideal for:

• Signal Amplification: Audio preamps, sensor interfaces, and low-noise analog circuits due to its high hFE.
• Switching Circuits: Relay drivers, LED drivers, and load switches benefiting from low Vce(sat).
• High-Frequency Applications: Oscillators, RF modules, and communication systems leveraging its 100MHz transition frequency.
• Portable Electronics: Battery-operated devices where low leakage and compact size are critical.
• Automotive & Industrial Systems: Robust performance in harsh environments due to wide temperature tolerance.

Conclusion of BC847C

The BC847C stands out as a versatile, high-performance NPN transistor with excellent gain, low saturation voltage, and high-frequency capability. Its compact SOT-23 package, compliance with environmental standards, and broad operating range make it a preferred choice for amplification, switching, and RF applications across consumer, industrial, and automotive sectors. Engineers favor this model for its reliability, efficiency, and cost-effectiveness in space-constrained designs.