STMicroelectronics
Изображение может быть репрезентативным.
Подробную информацию о продукте см. в характеристиках.
BUL381D
Посмотреть детали Таблицы данных

BUL381D

Product Overview

Category

The BUL381D is a power transistor belonging to the category of electronic components.

Use

It is commonly used in electronic circuits for amplification and switching applications.

Characteristics

  • High voltage capability
  • Fast switching speed
  • Low collector-emitter saturation voltage

Package

The BUL381D is typically available in a TO-220 package.

Essence

This power transistor is essential for controlling high-power loads in various electronic devices and systems.

Packaging/Quantity

It is usually packaged individually and sold in quantities suitable for small to medium-scale electronic projects.

Specifications

  • Collector-Emitter Voltage: 400V
  • Collector Current: 8A
  • Power Dissipation: 80W
  • Transition Frequency: 4MHz
  • Operating Temperature: -65°C to 150°C

Detailed Pin Configuration

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

Functional Features

  • High voltage capability allows for use in high-power applications.
  • Fast switching speed enables efficient control of electronic circuits.
  • Low collector-emitter saturation voltage minimizes power loss during operation.

Advantages

  • Suitable for high-power applications
  • Fast switching speed
  • Low power dissipation

Disadvantages

  • May require heat sinking in high-power applications
  • Sensitive to overvoltage conditions

Working Principles

The BUL381D operates based on the principles of bipolar junction transistors, where the flow of current between the collector and emitter is controlled by the base current.

Detailed Application Field Plans

The BUL381D is widely used in: - Power supply units - Audio amplifiers - Motor control circuits - Lighting systems

Detailed and Complete Alternative Models

  • BUL382D
  • BUL383D
  • BUL384D

In conclusion, the BUL381D power transistor is a versatile component with high voltage capability, fast switching speed, and low collector-emitter saturation voltage, making it suitable for a wide range of electronic applications.

Word Count: 294

Перечислите 10 распространенных вопросов и ответов, связанных с применением BUL381D в технических решениях.

  1. What is BUL381D?

    • BUL381D is a high-voltage NPN power transistor designed for use in various technical solutions requiring high power amplification or switching.

  2. What are the typical applications of BUL381D?

    • BUL381D is commonly used in electronic circuits such as audio amplifiers, power supplies, and motor control systems.

  3. What is the maximum voltage and current rating for BUL381D?

    • The maximum collector-emitter voltage (VCEO) is typically 400V, and the maximum collector current (IC) is around 8A.

  4. How do I properly mount and heat sink BUL381D?

    • BUL381D should be mounted on a suitable heat sink to ensure proper dissipation of heat generated during operation. Proper insulation and mechanical mounting techniques should be employed to prevent damage.

  5. What are the key electrical characteristics of BUL381D?

    • Some key characteristics include high current gain, low saturation voltage, and fast switching speed.

  6. Can BUL381D be used in automotive applications?

    • Yes, BUL381D can be used in automotive applications such as electronic ignition systems and motor control units.

  7. What are the recommended operating conditions for BUL381D?

    • It is recommended to operate BUL381D within specified temperature, voltage, and current limits to ensure reliable performance and longevity.

  8. Are there any common failure modes associated with BUL381D?

    • Common failure modes may include thermal runaway due to inadequate heat dissipation, overvoltage stress, and excessive current.

  9. Can BUL381D be used in high-frequency applications?

    • While BUL381D has moderate frequency capabilities, it is not typically recommended for high-frequency applications due to its inherent limitations.

  10. Where can I find detailed application notes and circuit examples for BUL381D?

    • Detailed application notes and circuit examples for BUL381D can be found in the manufacturer's datasheet, application notes, and technical literature. Additionally, online resources and forums may provide valuable insights into practical implementations.