MMBT3904LT3XT

Introduction

The MMBT3904LT3XT is a widely used NPN bipolar junction transistor (BJT) belonging to the category of small signal transistors. This component is commonly utilized in various electronic circuits due to its versatile characteristics and applications.

Basic Information Overview

• Category: Small Signal Transistor
• Use: Amplification, Switching
• Characteristics: High voltage and current gain, low noise, fast switching speed
• Package: SOT-23
• Essence: Essential for amplifying and switching electronic signals
• Packaging/Quantity: Available in reels with varying quantities

Specifications

• Maximum Collector-Base Voltage (Vcb): 40V
• Maximum Collector-Emitter Voltage (Vce): 40V
• Maximum Emitter-Base Voltage (Veb): 6V
• Continuous Collector Current (Ic): 200mA
• Total Power Dissipation (Pd): 350mW
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The MMBT3904LT3XT features a standard SOT-23 package with three pins: 1. Emitter (E): Connected to the ground or the source of the input signal 2. Base (B): Controls the transistor's conductivity 3. Collector (C): Outputs the amplified or switched signal

Functional Features

• High voltage and current gain make it suitable for amplification purposes
• Low noise characteristic ensures minimal interference in signal processing
• Fast switching speed enables efficient switching applications

Advantages and Disadvantages

Advantages

• Versatile applications in amplification and switching circuits
• Compact SOT-23 package for space-constrained designs
• High voltage and current gain for effective signal processing

Disadvantages

• Limited maximum collector current compared to power transistors
• Moderate power dissipation capability restricts high-power applications

Working Principles

The MMBT3904LT3XT operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a larger current flow between the collector and emitter terminals, allowing for signal amplification or switching.

Detailed Application Field Plans

The MMBT3904LT3XT finds extensive use in the following application fields: - Audio amplifiers - Signal processing circuits - Switching circuits in digital electronics - Oscillator circuits

Detailed and Complete Alternative Models

• MMBT2222A: Similar small signal NPN transistor with interchangeable characteristics
• 2N3904: Equivalent NPN BJT with comparable specifications and pin configuration
• BC547: Commonly used general-purpose NPN transistor with similar applications

In conclusion, the MMBT3904LT3XT serves as an essential component in electronic circuits, offering reliable performance in amplification and switching applications while being complemented by alternative models for diverse design requirements.

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