Central Semiconductor Corp
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2N2919
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2N2919 Transistor

Product Overview

The 2N2919 is a type of bipolar junction transistor (BJT) that falls under the category of small-signal transistors. It is commonly used in electronic circuits for amplification and switching purposes due to its high frequency and low power capabilities. The 2N2919 is known for its reliability, compact package, and versatile applications.

Basic Information

  • Category: Small-signal transistor
  • Use: Amplification and switching in electronic circuits
  • Characteristics: High frequency, low power
  • Package: TO-39 metal can package
  • Essence: Reliable and versatile
  • Packaging/Quantity: Typically available in packs of 10 or more

Specifications

  • Maximum Power Dissipation: 350 mW
  • Collector-Base Voltage (Vcbo): 60 V
  • Collector-Emitter Voltage (Vceo): 30 V
  • Emitter-Base Voltage (Vebo): 5 V
  • Collector Current (Ic): 600 mA
  • DC Current Gain (hfe): 40 - 300
  • Transition Frequency (ft): 250 MHz

Detailed Pin Configuration

The 2N2919 transistor has three pins: 1. Collector (C): This pin is connected to the positive supply voltage in most circuit configurations. 2. Base (B): The input signal is applied to this pin for controlling the transistor's operation. 3. Emitter (E): The output signal is taken from this pin.

Functional Features

  • High frequency capability makes it suitable for RF applications.
  • Low power consumption ideal for battery-operated devices.
  • Compact TO-39 package allows for easy integration into circuits.

Advantages and Disadvantages

Advantages

  • High frequency capability
  • Low power consumption
  • Reliable performance
  • Versatile applications

Disadvantages

  • Limited maximum power dissipation
  • Moderate DC current gain range

Working Principles

The 2N2919 operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a larger current flow between the collector and emitter terminals. This property enables the transistor to amplify signals or act as a switch in electronic circuits.

Detailed Application Field Plans

The 2N2919 transistor finds extensive use in various electronic applications, including: - Radio frequency (RF) amplifiers - Oscillators - Signal generators - Switching circuits - Low-power audio amplifiers

Detailed and Complete Alternative Models

Some alternative models to the 2N2919 include: - 2N2222: A general-purpose NPN transistor with similar characteristics. - BC547: Another widely used NPN transistor suitable for small-signal applications. - 2N3904: NPN transistor with comparable specifications and package type.

In conclusion, the 2N2919 transistor is a reliable and versatile component widely used in electronic circuits for amplification and switching purposes. Its high frequency capability, low power consumption, and compact package make it an essential part of various applications in the field of electronics.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von 2N2919 in technischen Lösungen auf

  1. What is the 2N2919 transistor used for?

    • The 2N2919 is a general-purpose NPN bipolar junction transistor commonly used in amplification and switching applications.

  2. What are the typical operating conditions for the 2N2919?

    • The 2N2919 operates under a maximum collector current of 600mA, with a maximum collector-emitter voltage of 40V.

  3. Can the 2N2919 be used for audio amplification?

    • Yes, the 2N2919 can be used in low-power audio amplifier circuits due to its moderate power handling capabilities.

  4. What are some common circuit configurations using the 2N2919?

    • The 2N2919 is often used in common emitter and common collector configurations for amplification and signal processing.

  5. Is the 2N2919 suitable for switching applications?

    • Yes, the 2N2919 can be used in low-power switching applications due to its fast switching characteristics.

  6. What are the typical gain characteristics of the 2N2919?

    • The 2N2919 has a moderate DC current gain (hFE) ranging from 40 to 160, making it suitable for various amplification tasks.

  7. Are there any specific thermal considerations when using the 2N2919?

    • It is important to consider heat dissipation when using the 2N2919 in high-power applications to prevent overheating and ensure reliable operation.

  8. Can the 2N2919 be used in oscillator circuits?

    • Yes, the 2N2919 can be utilized in low-frequency oscillator circuits due to its amplification and feedback properties.

  9. What are the typical package types available for the 2N2919?

    • The 2N2919 is commonly available in TO-92 and TO-39 packages, offering versatility in circuit board mounting and heat dissipation.

  10. Are there any common alternatives to the 2N2919 for similar applications?

    • Some common alternatives to the 2N2919 include the 2N2222, BC547, and BC548 transistors, which offer similar characteristics for various technical solutions.