PA91

Product Overview

Category: Electronic Component
Use: Amplifier
Characteristics: High power, low distortion
Package: TO-220
Essence: Power Amplifier
Packaging/Quantity: 1 piece per package

Specifications

• Maximum Power Output: 100W
• Total Harmonic Distortion: <0.01%
• Frequency Response: 20Hz - 20kHz
• Input Impedance: 47kΩ
• Output Impedance: 8Ω
• Supply Voltage: ±35V
• Quiescent Current: 50mA

Detailed Pin Configuration

PA91 has a TO-220 package with three pins:

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

Functional Features

• High power output for audio amplification
• Low distortion for accurate sound reproduction
• Suitable for various audio applications
• Robust and reliable design
• Easy to integrate into existing systems

Advantages and Disadvantages

Advantages: - High power output allows for loud and clear audio - Low distortion ensures accurate sound reproduction - Versatile application in different audio systems - Reliable performance and durability

Disadvantages: - Requires proper heat dissipation due to high power output - Limited availability in some markets

Working Principles

PA91 is a power amplifier that amplifies the input audio signal to a higher power level suitable for driving speakers or other audio devices. It operates by receiving an input signal at the base pin, which controls the flow of current between the collector and emitter pins. The amplified output signal is then delivered to the load (e.g., speaker) connected to the output terminals.

Detailed Application Field Plans

PA91 is commonly used in the following audio applications:

1. Home Theater Systems: PA91 provides sufficient power to drive multiple speakers and deliver immersive sound experiences.
2. Professional Audio Systems: It is suitable for amplifying audio signals in concert venues, recording studios, and live performances.
3. Car Audio Systems: PA91 can enhance the audio quality in car sound systems, providing a powerful and clear sound output.
4. Public Address Systems: It is used in public address systems to amplify speech or music in large venues such as stadiums, conference halls, and auditoriums.

Detailed and Complete Alternative Models

1. PA92: Similar to PA91, but with higher power output (150W) and improved distortion characteristics.
2. PA93: Lower power version of PA91, suitable for applications with lower power requirements (e.g., small speakers).
3. PA94: Compact package variant of PA91, designed for space-constrained applications.

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