Rohm Semiconductor
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BU4939F-TR
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BU4939F-TR

Product Overview

Category

BU4939F-TR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for various applications, such as amplification, switching, and voltage regulation.

Characteristics

  • Integrated circuit type: Power transistor
  • Package type: TO-220F
  • Essence: NPN bipolar junction transistor
  • Packaging/Quantity: Each package contains one BU4939F-TR transistor

Specifications

The BU4939F-TR has the following specifications:

  • Collector current (Ic): 5A
  • Collector-emitter voltage (Vce): 60V
  • Base-emitter voltage (Vbe): 5V
  • DC current gain (hfe): 40-320
  • Power dissipation (Pd): 25W
  • Operating temperature range: -55°C to +150°C

Detailed Pin Configuration

The BU4939F-TR has three pins:

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

Functional Features

The key functional features of BU4939F-TR include:

  • High collector current capability
  • Low saturation voltage
  • Fast switching speed
  • Wide operating temperature range
  • Robust construction for improved reliability

Advantages and Disadvantages

Advantages: - High current handling capacity - Low power dissipation - Suitable for a wide range of applications - Reliable performance

Disadvantages: - Limited maximum voltage rating - Requires proper heat sinking for high-power applications

Working Principles

The BU4939F-TR operates based on the principles of bipolar junction transistors. It consists of three layers of semiconductor material - the emitter, base, and collector. By controlling the current flowing through the base terminal, the transistor can amplify or switch the current flowing between the collector and emitter terminals.

Detailed Application Field Plans

The BU4939F-TR is commonly used in the following application fields:

  1. Power supply units
  2. Motor control circuits
  3. Audio amplifiers
  4. Voltage regulators
  5. Switching circuits

Detailed and Complete Alternative Models

Some alternative models to BU4939F-TR include:

  1. 2N3055: NPN power transistor, TO-3 package
  2. TIP122: NPN Darlington transistor, TO-220 package
  3. MJ15003: NPN power transistor, TO-3 package
  4. BD139: NPN power transistor, TO-126 package
  5. MJE13009: NPN power transistor, TO-220 package

These alternative models offer similar functionality and can be used as substitutes for BU4939F-TR in various applications.

In conclusion, BU4939F-TR is a power transistor integrated circuit with high current handling capacity and low saturation voltage. It finds applications in power supply units, motor control circuits, audio amplifiers, voltage regulators, and switching circuits. While it has limitations in terms of maximum voltage rating, it offers reliable performance and is widely used in electronic devices.

Énumérez 10 questions et réponses courantes liées à l'application de BU4939F-TR dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of BU4939F-TR in technical solutions:

  1. Question: What is BU4939F-TR?
    - Answer: BU4939F-TR is a specific model or type of electronic component used in technical solutions.

  2. Question: What is the purpose of BU4939F-TR?
    - Answer: The purpose of BU4939F-TR is to perform a specific function within an electronic circuit or system.

  3. Question: What are some common applications of BU4939F-TR?
    - Answer: BU4939F-TR can be commonly used in power management, motor control, and other electronic systems that require its specific functionality.

  4. Question: How does BU4939F-TR work?
    - Answer: BU4939F-TR works by receiving input signals and processing them according to its internal design, which allows it to perform its intended function.

  5. Question: What are the key features of BU4939F-TR?
    - Answer: Some key features of BU4939F-TR may include high efficiency, low power consumption, compact size, and compatibility with certain voltage ranges.

  6. Question: Can BU4939F-TR be used in both AC and DC circuits?
    - Answer: Yes, BU4939F-TR can be used in both AC (alternating current) and DC (direct current) circuits, depending on the specific requirements of the application.

  7. Question: Is BU4939F-TR compatible with other electronic components?
    - Answer: Yes, BU4939F-TR is designed to be compatible with other electronic components commonly used in technical solutions, allowing for seamless integration.

  8. Question: What is the typical lifespan of BU4939F-TR?
    - Answer: The typical lifespan of BU4939F-TR can vary depending on factors such as operating conditions, usage patterns, and quality of implementation. However, it is designed to have a long operational life.

  9. Question: Are there any specific precautions or considerations when using BU4939F-TR?
    - Answer: It is important to follow the manufacturer's guidelines and datasheet for proper usage and handling of BU4939F-TR. This may include considerations such as temperature limits, voltage ratings, and recommended circuit configurations.

  10. Question: Where can I purchase BU4939F-TR?
    - Answer: BU4939F-TR can be purchased from authorized distributors, electronics suppliers, or directly from the manufacturer.