Microsemi Corporation
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2N3838
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2N3838 Transistor

Product Overview

Category:

The 2N3838 is a bipolar junction transistor (BJT) belonging to the NPN type.

Use:

It is commonly used for amplification and switching of electronic signals in various applications.

Characteristics:

  • Low power dissipation
  • High current gain
  • Medium voltage capability

Package:

The 2N3838 is typically available in TO-92 packaging.

Essence:

This transistor is essential for electronic circuit design, particularly in low-power applications.

Packaging/Quantity:

The 2N3838 is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Base Voltage (VCBO): 40V
  • Collector-Emitter Voltage (VCEO): 25V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 200mA
  • Power Dissipation (PD): 625mW
  • Transition Frequency (ft): 100MHz
  • Operating Temperature Range: -65°C to 200°C

Detailed Pin Configuration

The 2N3838 transistor has three pins: collector, base, and emitter. The pinout configuration is as follows: - Collector (C) - Pin 1 - Base (B) - Pin 2 - Emitter (E) - Pin 3

Functional Features

  • High current gain
  • Low noise
  • Fast switching speed

Advantages and Disadvantages

Advantages

  • Suitable for low-power applications
  • High current gain allows for signal amplification
  • Compact TO-92 package for easy integration into circuits

Disadvantages

  • Limited voltage and current handling capabilities compared to higher-power transistors
  • Sensitive to temperature variations

Working Principles

The 2N3838 operates based on the principles of amplification and control of current flow through its three terminals. When biased correctly, it can amplify small input signals to produce larger output signals.

Detailed Application Field Plans

The 2N3838 transistor finds application in various fields, including: - Audio amplification circuits - Signal switching circuits - Oscillator circuits - Sensor interfacing circuits - Low-power electronic devices

Detailed and Complete Alternative Models

Some alternative models to the 2N3838 include: - 2N2222 - BC547 - 2N3904 - PN2222

In conclusion, the 2N3838 transistor offers a balance of performance and size, making it suitable for a wide range of low-power electronic applications.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 2N3838 i tekniske løsninger

  1. What is 2N3838?

    • 2N3838 is a silicon NPN transistor commonly used for general-purpose amplification and switching applications.

  2. What are the typical applications of 2N3838?

    • The 2N3838 transistor is often used in audio amplifiers, signal processing circuits, and low-frequency switching applications.

  3. What are the key electrical characteristics of 2N3838?

    • The 2N3838 has a maximum collector current of 500mA, a maximum collector-emitter voltage of 40V, and a maximum power dissipation of 625mW.

  4. How do I identify the pinout of 2N3838?

    • The pinout of 2N3838 is typically identified as the emitter (E), base (B), and collector (C) pins.

  5. What are some common circuit configurations using 2N3838?

    • Common circuit configurations include common emitter amplifiers, switch circuits, and Darlington pair configurations.

  6. What are the recommended operating conditions for 2N3838?

    • The recommended operating temperature range for 2N3838 is typically between -55°C to 150°C, with a maximum junction temperature of 200°C.

  7. How do I calculate the biasing resistors for 2N3838 in an amplifier circuit?

    • The biasing resistors can be calculated using the desired quiescent collector current and the transistor's base-emitter voltage drop.

  8. What are the typical gain characteristics of 2N3838?

    • The current gain (hFE) of 2N3838 typically ranges from 100 to 300, depending on the operating conditions and biasing.

  9. Can 2N3838 be used in high-frequency applications?

    • While 2N3838 is not specifically designed for high-frequency applications, it can still be used in low to moderate frequency circuits with appropriate design considerations.

  10. Are there any common alternatives to 2N3838?

    • Some common alternatives to 2N3838 include 2N2222, BC547, and BC548 transistors, which have similar characteristics and can be used in comparable applications.