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BC847A

BC847A Description

The BC847A from MDD is a high-performance NPN bipolar junction transistor (BJT) designed for surface-mount applications. With a collector-emitter voltage (V_CE) rating of 45V and a collector current (I_C) capability of 100mA, it is well-suited for low-power amplification and switching tasks. The transistor boasts a transition frequency (f_T) of 100MHz, ensuring reliable performance in high-frequency circuits. Its low saturation voltage (500mV @ 5mA, 100mA) enhances efficiency in switching applications, while a minimum DC current gain (h_FE) of 110 @ 2mA, 5V ensures stable amplification. Packaged in SOT-23 and available in Tape & Reel (TR), it is optimized for automated assembly processes.

BC847A Features

• High Voltage Rating: 45V V_CE for robust operation in various circuits.
• Low Saturation Voltage: 500mV @ 5mA, 100mA minimizes power loss in switching.
• High Current Gain: h_FE ≥ 110 ensures consistent signal amplification.
• Fast Switching: 100MHz transition frequency supports high-speed applications.
• Low Leakage Current: 100nA (I_CBO) enhances energy efficiency.
• Compact & Reliable: SOT-23 package with MSL1 (Unlimited) moisture sensitivity.
• Compliance: ROHS3 & REACH compliant, meeting environmental standards.

BC847A Applications

The BC847A is ideal for:

• Signal Amplification: Audio preamps, sensor interfaces, and RF stages.
• Switching Circuits: Load drivers, relay control, and logic-level shifting.
• High-Frequency Designs: Oscillators, mixers, and communication modules.
• Portable Electronics: Battery-powered devices due to low leakage and efficiency.
• Automotive & Industrial Systems: Low-noise, reliable performance in harsh environments.

Conclusion of BC847A

The BC847A stands out for its balanced performance in amplification and switching, backed by high-frequency capability and low power dissipation. Its compact SOT-23 package and compliance with environmental standards make it a versatile choice for modern electronics. Whether in consumer, industrial, or automotive applications, this transistor delivers reliability, efficiency, and cost-effectiveness, making it a preferred alternative to similar BJTs in its class.