ON Semiconductor
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BC238BBU
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BC238BBU

Product Overview

Category

The BC238BBU belongs to the category of bipolar junction transistors (BJTs).

Use

It is commonly used as an amplifier or switch in electronic circuits.

Characteristics

  • Low noise
  • High current gain
  • Medium power dissipation

Package

The BC238BBU is typically available in a TO-92 package.

Essence

This transistor is essential for amplifying weak signals and controlling larger currents in electronic devices.

Packaging/Quantity

It is usually packaged in reels, tubes, or bulk quantities, depending on the supplier.

Specifications

  • Collector-Base Voltage: 45V
  • Collector-Emitter Voltage: 45V
  • Emitter-Base Voltage: 6V
  • Collector Current - Continuous: 100mA
  • Power Dissipation: 625mW
  • DC Current Gain (hFE): 110 to 800
  • Transition Frequency: 150MHz

Detailed Pin Configuration

The BC238BBU has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

  • High current gain allows for small base current to control large collector current.
  • Low noise makes it suitable for audio applications.
  • Wide range of hFE values provides flexibility in circuit design.

Advantages

  • Low noise performance
  • High current gain
  • Versatile applications in amplification and switching circuits

Disadvantages

  • Limited power dissipation capability
  • Relatively low collector-emitter voltage rating

Working Principles

The BC238BBU operates based on the principles of amplification and control of current flow. When a small current is applied to the base terminal, it controls a much larger current flowing between the collector and emitter terminals.

Detailed Application Field Plans

The BC238BBU is widely used in the following applications: - Audio amplifiers - Signal amplification in sensor circuits - Switching circuits in electronic devices

Detailed and Complete Alternative Models

Some alternative models to the BC238BBU include: - BC337: Similar characteristics with higher power dissipation - 2N3904: Commonly used general-purpose transistor with comparable specifications - 2N2222: Higher current and power handling capabilities

In conclusion, the BC238BBU is a versatile BJT with low noise and high current gain, making it suitable for various amplification and switching applications in electronic circuits.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BC238BBU v technických řešeních

  1. What is the BC238BBU transistor used for?

    • The BC238BBU transistor is commonly used for amplification and switching applications in electronic circuits.

  2. What are the key specifications of the BC238BBU transistor?

    • The BC238BBU transistor typically has a maximum collector current of 100mA, a maximum collector-emitter voltage of 30V, and a maximum power dissipation of 500mW.

  3. Can the BC238BBU be used as a switch in a circuit?

    • Yes, the BC238BBU can be used as a switch to control the flow of current in electronic circuits.

  4. What are some typical applications of the BC238BBU transistor?

    • The BC238BBU transistor is commonly used in audio amplifiers, signal processing circuits, and general purpose switching circuits.

  5. What are the pin configurations of the BC238BBU transistor?

    • The BC238BBU transistor typically has three pins: the emitter, base, and collector, which are labeled E, B, and C respectively.

  6. What are the temperature considerations for using the BC238BBU transistor?

    • The BC238BBU transistor operates within a specified temperature range, typically between -65°C to 150°C, and should be used within these limits for optimal performance.

  7. Is the BC238BBU suitable for low-power applications?

    • Yes, the BC238BBU is well-suited for low-power applications due to its relatively low maximum collector current and power dissipation.

  8. Can the BC238BBU be used in high-frequency circuits?

    • While the BC238BBU can be used in some high-frequency applications, it is more commonly utilized in low to moderate frequency circuits.

  9. What are the typical gain characteristics of the BC238BBU transistor?

    • The BC238BBU transistor typically has a moderate to high current gain (hFE) which makes it suitable for amplification purposes.

  10. Are there any common alternatives to the BC238BBU transistor?

    • Yes, common alternatives to the BC238BBU include transistors such as the BC337, 2N3904, and 2N2222, which have similar characteristics and can be used in its place in many circuits.