CG7868AAT

Product Overview

Category: Electronic Component
Use: Signal Amplification
Characteristics: High Gain, Low Noise
Package: TO-92
Essence: Transistor
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Maximum Collector Current: 100mA
• Maximum Collector-Emitter Voltage: 30V
• Maximum Power Dissipation: 200mW
• Transition Frequency: 150MHz
• Noise Figure: 2dB
• Gain Bandwidth Product: 300MHz
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The CG7868AAT transistor has three pins:

1. Base (B)
2. Emitter (E)
3. Collector (C)

Functional Features

• High gain amplification of weak signals
• Low noise performance for improved signal quality
• Suitable for a wide range of applications due to its high transition frequency
• Compact TO-92 package for easy integration into circuits

Advantages and Disadvantages

Advantages: - High gain allows for amplification of weak signals - Low noise figure ensures minimal distortion in the amplified signal - Wide operating temperature range enables usage in various environments

Disadvantages: - Limited maximum collector current may restrict certain applications - Lower power dissipation compared to other transistors in the same category

Working Principles

The CG7868AAT is a bipolar junction transistor (BJT) that operates based on the principles of amplification and control of electric current. It consists of three layers of semiconductor material, namely the emitter, base, and collector. By applying a small current at the base terminal, a larger current can be controlled between the collector and emitter terminals.

Detailed Application Field Plans

The CG7868AAT transistor finds applications in various fields, including:

1. Audio Amplification: Used in audio amplifiers to boost weak audio signals.
2. RF Communication Systems: Employed in radio frequency (RF) circuits for signal amplification and modulation.
3. Sensor Interface Circuits: Utilized in sensor interface circuits to amplify weak sensor signals for further processing.
4. Oscillator Circuits: Incorporated in oscillator circuits to generate stable oscillations.

Detailed and Complete Alternative Models

1. BC547: A general-purpose NPN transistor with similar characteristics and package.
2. 2N3904: Another NPN transistor commonly used for signal amplification.
3. MPSA42: A high-voltage NPN transistor suitable for power applications.

These alternative models can be considered based on specific requirements and availability.

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