BU21TD3WG-TR

Product Overview

Category: Electronic Component
Use: Power Transistor
Characteristics: High voltage, high current, low saturation voltage
Package: TO-252 (DPAK)
Essence: NPN Bipolar Junction Transistor
Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Collector-Emitter Voltage (VCEO): 100V
• Collector Current (IC): 2A
• Base Current (IB): 1A
• Power Dissipation (PD): 1.25W
• Transition Frequency (fT): 150MHz
• Saturation Voltage (VCE(sat)): 0.5V @ IC = 1A, IB = 100mA
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The BU21TD3WG-TR transistor has three pins:

1. Collector (C): This pin is connected to the positive terminal of the load or power supply.
2. Base (B): This pin controls the flow of current between the collector and emitter.
3. Emitter (E): This pin is connected to the negative terminal of the load or power supply.

Functional Features

• High voltage capability allows for use in various power applications.
• High current handling capacity makes it suitable for switching applications.
• Low saturation voltage reduces power dissipation and improves efficiency.
• Fast switching speed enables quick response in electronic circuits.

Advantages and Disadvantages

Advantages: - High voltage and current ratings make it versatile for different applications. - Low saturation voltage minimizes power loss and enhances efficiency. - Compact TO-252 package offers easy mounting and heat dissipation.

Disadvantages: - Limited power dissipation capability restricts usage in high-power applications. - Transition frequency may limit its suitability for high-frequency applications.

Working Principles

The BU21TD3WG-TR is an NPN bipolar junction transistor (BJT). It operates based on the principles of amplification and control of current flow. When a small current flows into the base terminal, it controls a larger current flowing between the collector and emitter terminals. This allows the transistor to act as a switch or amplifier in electronic circuits.

Detailed Application Field Plans

The BU21TD3WG-TR transistor finds applications in various fields, including:

1. Power Supplies: It can be used in power supply circuits to regulate voltage and current.
2. Motor Control: The transistor can control the speed and direction of motors in robotics and automation systems.
3. Lighting Systems: It is suitable for driving LEDs and controlling lighting intensity.
4. Audio Amplifiers: The transistor can amplify audio signals in audio systems and amplifiers.
5. Switching Circuits: It can be utilized in switching applications such as relay drivers and digital logic circuits.

Detailed and Complete Alternative Models

1. BC547: A general-purpose NPN transistor with lower voltage and current ratings.
2. 2N3904: Another versatile NPN transistor with similar characteristics.
3. MJE3055T: A power transistor with higher voltage and current handling capabilities.

These alternative models offer different specifications and package options to suit specific application requirements.

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