Transistor C1841 NPN 5mA 120V

The Transistor C1841 is a high-voltage NPN transistor designed for low-current amplification and fast switching applications. With a collector current of 5mA and a collector-emitter voltage rating of 120V, the Transistor C1841 combines precision, stability, and efficiency—making it ideal for audio, signal, and high-frequency circuits. This component is widely used in television circuits, communication devices, and control systems where high voltage and low power consumption are essential.

Key Features

• Type: NPN Silicon Small Signal Transistor

• Collector Current (Ic): 5mA continuous

• Collector-Emitter Voltage (Vce): 120V

• Collector-Base Voltage (Vcb): 140V

• Emitter-Base Voltage (Veb): 5V

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

• Transition Frequency (fT): 150 MHz typical

• Package Type: TO-92 plastic encapsulation for compact and reliable design

Advantages

• High voltage tolerance (up to 120V), suitable for high-voltage signal circuits.

• Low collector current, allowing efficient operation with minimal power usage.

• Excellent frequency response and fast switching characteristics.

• Low noise output, ensuring clear signal amplification in sensitive circuits.

• Durable and thermally stable design for consistent long-term performance.

Applications

• Audio Amplifiers: Used in low-noise preamplifier and driver stages.

• Signal Amplifiers: Perfect for voltage and frequency signal amplification.

• Switching Circuits: Reliable in low-current, high-speed switching control.

• Oscillator Circuits: Performs well in frequency generation and waveform control.

• Communication Devices: Suitable for radio and receiver signal processing systems.

Electrical Characteristics (Typical Values at 25°C)

Datasheet Summary

• Model: C1841

• Polarity: NPN

• Collector-Emitter Voltage (Vce): 120V

• Collector Current (Ic): 5mA

• Power Dissipation: 400 mW

• Frequency Response: 150 MHz

• Package Type: TO-92

• Complementary Transistor: A992 (PNP Transistor)

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

Conclusion

The Transistor C1841 is a highly reliable NPN transistor offering excellent performance for low-current, high-voltage electronic applications. With its superior frequency response, minimal noise, and efficient amplification, it is widely used in professional and educational circuits. Whether used for audio signal amplification, frequency oscillation, or control systems, the Transistor C1841 NPN 5mA 120V guarantees precision, long-term durability, and stable performance—making it a perfect choice for engineers and designers seeking high-voltage efficiency in a compact form.