FMMT449TA Encyclopedia Entry

Product Overview

Category

The FMMT449TA belongs to the category of semiconductor devices, specifically a type of transistor.

Use

This transistor is commonly used in electronic circuits for amplification and switching purposes.

Characteristics

• The FMMT449TA is a small signal NPN bipolar junction transistor (BJT) with high current gain and low saturation voltage.
• It is designed for general purpose amplifier and switching applications.

Package

The FMMT449TA is typically available in a SOT-23 package, which is a small surface-mount package suitable for compact electronic designs.

Essence

The essence of the FMMT449TA lies in its ability to provide reliable amplification and switching capabilities in various electronic circuits.

Packaging/Quantity

It is usually supplied in reels or tubes containing a specific quantity, such as 3000 units per reel.

Specifications

• Maximum Collector-Base Voltage: 40V
• Maximum Collector Current: 500mA
• DC Current Gain (hFE): 100 - 250
• Power Dissipation: 225mW
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The FMMT449TA transistor has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

• High current gain allows for efficient signal amplification.
• Low saturation voltage enables effective switching operations.
• Small form factor makes it suitable for compact circuit designs.

Advantages and Disadvantages

Advantages

• High current gain for effective signal amplification.
• Low saturation voltage for efficient switching applications.
• Small package size for space-constrained designs.

Disadvantages

• Limited power dissipation capability compared to larger transistors.
• Moderate operating temperature range may not be suitable for extreme environments.

Working Principles

The FMMT449TA operates based on the principles of bipolar junction transistors, utilizing the flow of charge carriers to amplify or switch electronic signals.

Detailed Application Field Plans

The FMMT449TA is commonly used in the following applications: - Audio amplifiers - Signal amplification circuits - Switching circuits in consumer electronics - Interface circuits in control systems

Detailed and Complete Alternative Models

Some alternative models to the FMMT449TA include: - BC547B - 2N3904 - 2SC945

In conclusion, the FMMT449TA transistor offers a compact and efficient solution for amplification and switching needs in various electronic circuits, making it a versatile component in modern electronic designs.

[Word count: 387]