PA83A

Product Overview

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

Specifications

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

Detailed Pin Configuration

The PA83A transistor has three pins:

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

Functional Features

• High gain amplification of weak signals
• Low noise operation
• Suitable for audio and RF applications
• Compact TO-92 package for easy integration
• Wide operating temperature range

Advantages and Disadvantages

Advantages

• High gain allows amplification of weak signals
• Low noise operation ensures clear signal transmission
• Versatile application in audio and RF circuits
• Compact package enables easy integration into circuit designs
• Wide operating temperature range for various environments

Disadvantages

• Limited maximum collector current may restrict use in high-power applications
• Maximum collector-emitter voltage may limit voltage handling capabilities

Working Principles

The PA83A is an NPN transistor that operates based on the principles of bipolar junction transistors. It consists of three layers of semiconductor material - the emitter, base, and collector. By applying a small current at the base terminal, the transistor allows a larger current to flow between the collector and emitter terminals. This amplification property makes it suitable for use in various electronic circuits.

Detailed Application Field Plans

The PA83A transistor finds applications in various electronic circuits, including:

1. Audio Amplifiers: The high gain and low noise characteristics make it ideal for amplifying audio signals in devices such as radios, televisions, and audio systems.
2. RF Amplifiers: The transistor's wide frequency response and low noise operation make it suitable for amplifying radio frequency signals in communication systems.
3. Oscillators: The PA83A can be used in oscillator circuits to generate stable oscillations for applications like signal generation and timing circuits.

Detailed and Complete Alternative Models

• BC547
• 2N3904
• PN2222
• 2SC945
• MPSA18

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

This encyclopedia entry provides an overview of the PA83A transistor, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.