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2N3904NLBU
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2N3904NLBU

Product Overview

Category:

The 2N3904NLBU belongs to the category of NPN bipolar junction transistors.

Use:

It is commonly used as a general-purpose amplifier or switch in electronic circuits.

Characteristics:

  • Low power, high voltage
  • Fast switching speed
  • Small signal amplification

Package:

The 2N3904NLBU is typically available in a TO-92 package.

Essence:

This transistor is essential for amplifying and switching electronic signals in various applications.

Packaging/Quantity:

It is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Base Voltage (VCBO): 60V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 200mA
  • Power Dissipation (PD): 625mW
  • DC Current Gain (hFE): 100 - 300
  • Transition Frequency (fT): 250MHz

Detailed Pin Configuration

The 2N3904NLBU has three pins: the emitter, base, and collector. In a TO-92 package, the pinout configuration is as follows: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

  • Amplification of small electronic signals
  • Switching capability for electronic circuits
  • Suitable for low-power applications

Advantages and Disadvantages

Advantages

  • Versatile usage in various electronic circuits
  • Fast switching speed
  • Low power consumption

Disadvantages

  • Limited power handling capacity
  • Relatively low maximum current rating

Working Principles

The 2N3904NLBU operates based on the principles of bipolar junction transistors, where the flow of current between the collector and emitter is controlled by the current at the base terminal. It amplifies or switches electronic signals based on the input at the base.

Detailed Application Field Plans

Audio Amplification

The transistor can be used in audio amplifier circuits to amplify low-level audio signals.

Signal Switching

It can serve as a switch in electronic circuits, allowing or blocking the flow of signals based on the input at the base.

Oscillator Circuits

In oscillator circuits, the 2N3904NLBU can generate and sustain oscillations for various applications.

Detailed and Complete Alternative Models

  • BC547
  • 2N2222
  • PN2222
  • BC548
  • 2N4401

In conclusion, the 2N3904NLBU is a versatile NPN transistor with applications in amplification and switching of electronic signals. Its compact size, fast switching speed, and low power consumption make it suitable for a wide range of electronic circuits.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق 2N3904NLBU في الحلول التقنية

  1. What is the 2N3904NLBU transistor used for?

    • The 2N3904NLBU is a general-purpose NPN bipolar junction transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the typical operating conditions for the 2N3904NLBU?

    • The 2N3904NLBU operates at a maximum collector current of 200mA, with a maximum collector-emitter voltage of 40V and a maximum power dissipation of 625mW.

  3. Can the 2N3904NLBU be used for audio amplification?

    • Yes, the 2N3904NLBU is suitable for small-signal audio amplification due to its low noise and high gain characteristics.

  4. What are the pin configurations of the 2N3904NLBU?

    • The 2N3904NLBU has three pins: the emitter (E), base (B), and collector (C). The pinout configuration is Emitter-Base-Collector (EBC).

  5. Is the 2N3904NLBU suitable for low-power switching applications?

    • Yes, the 2N3904NLBU can be used for low-power switching applications such as driving small relays or LEDs.

  6. What are the typical gain characteristics of the 2N3904NLBU?

    • The 2N3904NLBU has a typical DC current gain (hFE) ranging from 100 to 300, making it suitable for various amplification tasks.

  7. Does the 2N3904NLBU require a heat sink for operation?

    • For most common applications within its specified operating conditions, the 2N3904NLBU does not require a heat sink. However, for high-power applications, a heat sink may be necessary.

  8. Can the 2N3904NLBU be used in high-frequency applications?

    • While the 2N3904NLBU has limitations in high-frequency performance, it can still be used in moderate frequency applications up to a few megahertz.

  9. What are some common alternatives to the 2N3904NLBU?

    • Common alternatives to the 2N3904NLBU include the 2N2222, BC547, and BC548 transistors, which have similar characteristics and can be used in its place in many circuits.

  10. Are there any specific precautions to consider when using the 2N3904NLBU in technical solutions?

    • It's important to ensure that the maximum ratings of the transistor are not exceeded, and proper biasing and circuit protection should be implemented to prevent damage to the device. Additionally, attention should be paid to the soldering and handling of the transistor to avoid static discharge and overheating.