CG7869AAT

Product Overview

Category: Electronic Component
Use: Signal Amplification
Characteristics: High Gain, Low Noise
Package: TO-92
Essence: Transistor
Packaging/Quantity: Bulk Packaging, 1000 units per pack

Specifications

• Maximum Collector Current: 500mA
• Maximum Collector-Emitter Voltage: 40V
• Maximum Power Dissipation: 625mW
• Transition Frequency: 300MHz
• Collector-Base Voltage: 60V
• Emitter-Base Voltage: 5V
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The CG7869AAT transistor has three pins:

1. Collector (C): This pin is connected to the positive terminal of the power supply or load.
2. Base (B): The input signal is applied to this pin for amplification.
3. Emitter (E): This pin is connected to the negative terminal of the power supply or load.

Functional Features

• High gain amplification of weak signals.
• Low noise performance for improved signal quality.
• Suitable for small-signal amplification applications.
• Compact TO-92 package for easy integration into circuits.
• Wide operating temperature range for versatile usage.

Advantages and Disadvantages

Advantages: - High gain allows for effective signal amplification. - Low noise performance ensures signal fidelity. - Compact package enables space-saving designs. - Wide operating temperature range for various environments.

Disadvantages: - Limited maximum collector current may restrict certain applications. - Lower power dissipation compared to some alternative models.

Working Principles

The CG7869AAT transistor operates based on the principles of bipolar junction transistors (BJTs). It consists of two PN junctions, namely the base-emitter junction and the base-collector junction. By applying a small input current to the base-emitter junction, a larger output current flows through the collector-emitter junction. This amplification is achieved due to the transistor's ability to control the flow of current using the base current.

Detailed Application Field Plans

The CG7869AAT transistor finds applications in various fields, including:

1. Audio Amplification: Used in audio systems to amplify weak audio signals.
2. Communication Systems: Employed in radio frequency (RF) circuits for signal amplification.
3. Sensor Interfaces: Utilized in sensor circuits to amplify weak sensor signals.
4. Oscillator Circuits: Integrated into oscillator circuits for signal generation and amplification.
5. Medical Devices: Incorporated in medical equipment for signal processing and amplification.

Detailed and Complete Alternative Models

1. CG7890BBT
2. CG7856AAT
3. CG7878CBT
4. CG7845DAT
5. CG7887EBT

These alternative models offer similar functionality and characteristics to the CG7869AAT transistor, providing options for different design requirements.

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