Transistor C3198 NPN 150mA 50V

The Transistor C3198 is a high-quality NPN transistor designed for low-noise amplification, high gain, and general-purpose switching. With its balanced combination of moderate voltage capacity (50V) and collector current (150mA), the Transistor C3198 is ideal for audio signal amplification, preamplifier circuits, and small-signal switching applications. Known for its exceptional linearity, reliability, and frequency response, this transistor is commonly used in professional-grade and hobbyist electronics projects that demand clean, precise signal performance.

Key Features

• Type: NPN Silicon Small Signal Transistor

• Collector Current (Ic): 150mA continuous

• Collector-Emitter Voltage (Vce): 50V

• Collector-Base Voltage (Vcb): 60V

• Emitter-Base Voltage (Veb): 5V

• DC Current Gain (hFE): 70 – 700 (depending on current and temperature)

• Transition Frequency (fT): 250 MHz typical

• Package Type: TO-92 for compact and reliable performance

Advantages

• Excellent low noise characteristics, ideal for audio and signal processing circuits.

• High DC gain ensures efficient signal amplification with minimal distortion.

• Fast switching speed suitable for digital and analog circuit integration.

• Stable operation under varying temperature and voltage conditions.

• Compact TO-92 package ensures easy PCB mounting and long service life.

Applications

• Audio Preamplifiers: Perfect for low-noise amplification in microphones, mixers, and speakers.

• Signal Processing Circuits: Enhances small-signal stability in communication and radio systems.

• Switching Circuits: Operates effectively in control systems and logic circuits.

• Oscillator Circuits: Ideal for high-frequency oscillation and waveform generation.

• DIY and Educational Projects: Commonly used in low-power learning and experimental setups.

Electrical Characteristics (Typical Values at 25°C)

Datasheet Summary

• Model: C3198

• Polarity: NPN

• Collector Current (Ic): 150mA

• Collector-Emitter Voltage (Vce): 50V

• Frequency Response: 250 MHz

• Power Dissipation: 400 mW

• Complementary Pair: A1266 (PNP Transistor)

• Package: TO-92 plastic

• Operating Temperature: -55°C to +150°C

Conclusion

The Transistor C3198 is a versatile NPN transistor offering low noise, high gain, and reliable performance in audio and signal amplification circuits. Its wide frequency response and stable current handling make it an ideal solution for applications demanding precision and clarity. Whether used in preamplifiers, oscillators, or control circuits, the Transistor C3198 NPN 150mA 50V ensures superior performance, long-term durability, and consistent results for professionals, students, and electronics enthusiasts alike.