Microsemi Corporation
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
2N3868
Zobrazit detail DataSheets

2N3868 Transistor

Introduction

The 2N3868 is a bipolar junction transistor (BJT) that belongs to the category of small-signal transistors. It is commonly used in electronic circuits for amplification and switching applications due to its specific characteristics and performance.

Basic Information Overview

  • Category: Small-signal transistor
  • Use: Amplification and switching in electronic circuits
  • Characteristics: High gain, low noise, and reliable performance
  • Package: TO-92 package
  • Essence: NPN silicon transistor
  • Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

  • Maximum Collector-Base Voltage (Vcb): 40V
  • Maximum Collector-Emitter Voltage (Vce): 25V
  • Maximum Emitter-Base Voltage (Veb): 5V
  • Collector Current (Ic): 200mA
  • Power Dissipation (Pd): 625mW
  • Transition Frequency (ft): 100MHz

Detailed Pin Configuration

The 2N3868 transistor has three pins: 1. Emitter (E): Connected to the N-type semiconductor material. 2. Base (B): Controls the flow of current between the emitter and collector. 3. Collector (C): Collects the majority charge carriers.

Functional Features

  • High voltage and current capability
  • Low noise and distortion
  • Fast switching speed
  • Wide frequency response

Advantages and Disadvantages

Advantages

  • High gain and linearity
  • Reliable performance
  • Versatile applications in amplification and switching circuits

Disadvantages

  • Limited power handling capability compared to power transistors
  • Sensitive to temperature variations

Working Principles

The 2N3868 operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a larger current flowing between the collector and emitter terminals, allowing for amplification or switching of signals.

Detailed Application Field Plans

The 2N3868 transistor finds extensive use in various electronic applications, including: - Audio amplifiers - Signal processing circuits - Oscillator circuits - Switching circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N3868 include: - 2N3904 - BC547 - 2N2222 - 2N4401

In conclusion, the 2N3868 transistor is a versatile component widely used in electronic circuits for its high gain, low noise, and reliable performance. Its application spans across various fields, making it an essential part of modern electronics.

Word Count: 344

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N3868 v technických řešeních

  1. What is the 2N3868 transistor used for?

    • The 2N3868 is a general-purpose NPN transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the typical operating conditions for the 2N3868?

    • The 2N3868 operates under a maximum collector current of 200mA, a maximum collector-emitter voltage of 40V, and a maximum power dissipation of 625mW.

  3. How do I identify the pinout of the 2N3868 transistor?

    • The pinout of the 2N3868 transistor is typically identified as the emitter (E), base (B), and collector (C) pins.

  4. What are some common circuit configurations using the 2N3868?

    • The 2N3868 can be used in common emitter, common base, and common collector configurations for various amplification and switching purposes.

  5. What are the key characteristics of the 2N3868 transistor?

    • The 2N3868 transistor has high current gain, low noise, and good frequency response, making it suitable for audio and RF applications.

  6. Can the 2N3868 be used for low-power applications?

    • Yes, the 2N3868 is suitable for low-power applications due to its moderate power dissipation and current handling capabilities.

  7. What are the typical applications of the 2N3868 in electronic circuits?

    • The 2N3868 is commonly used in audio amplifiers, signal processing circuits, RF amplifiers, and general-purpose switching circuits.

  8. What are the recommended biasing and operating conditions for the 2N3868?

    • The 2N3868 is typically biased in the active region and operated within its specified voltage and current limits to ensure proper functionality and reliability.

  9. Are there any common alternatives to the 2N3868 transistor?

    • Common alternatives to the 2N3868 include the 2N2222, BC547, and BC548 transistors, which offer similar characteristics and can be used in comparable applications.

  10. Where can I find detailed datasheets and application notes for the 2N3868?

    • Detailed datasheets and application notes for the 2N3868 can be found on semiconductor manufacturer websites, electronics component distributors, and technical literature sources.