Central Semiconductor Corp
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2N681
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2N681 Transistor

Product Overview

The 2N681 transistor is a versatile electronic component that falls under the category of small-signal transistors. It is commonly used in amplification and switching circuits due to its high frequency and low power capabilities. The 2N681 transistor exhibits characteristics such as high gain, low noise, and excellent linearity. It is typically packaged in a TO-18 metal can package and is available in various quantities.

Specifications

  • Type: NPN
  • Maximum Power Dissipation: 300mW
  • Collector-Base Voltage (VCBO): 40V
  • Collector-Emitter Voltage (VCEO): 25V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 100mA
  • DC Current Gain (hFE): 100 - 300
  • Transition Frequency (fT): 200MHz

Detailed Pin Configuration

The 2N681 transistor has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

The 2N681 transistor offers high gain, low noise, and excellent linearity, making it suitable for applications requiring signal amplification and switching. Its compact size and robust construction make it ideal for use in various electronic circuits.

Advantages and Disadvantages

Advantages

  • High gain
  • Low noise
  • Excellent linearity
  • Compact size

Disadvantages

  • Limited maximum power dissipation
  • Relatively low collector current rating

Working Principles

The 2N681 transistor operates based on the principles of semiconductor physics. When a small current flows into the base terminal, it controls a much larger current flowing between the collector and emitter terminals. This property allows the transistor to amplify signals and control the flow of current in electronic circuits.

Detailed Application Field Plans

The 2N681 transistor finds extensive use in the following applications: - Audio amplifiers - Radio frequency (RF) amplifiers - Oscillator circuits - Switching circuits - Signal processing circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N681 transistor include: - 2N3904 - BC547 - 2N2222 - 2N4401

In conclusion, the 2N681 transistor is a valuable component in electronic circuit design, offering high performance in amplification and switching applications. Its compact size and versatile characteristics make it a popular choice among electronics enthusiasts and professionals alike.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N681 v technických řešeních

  1. What is 2N681?

    • 2N681 is a silicon PNP transistor used for general-purpose amplification and switching applications.

  2. What are the typical applications of 2N681?

    • It can be used in audio amplifiers, signal processing circuits, and as a switch in electronic circuits.

  3. What are the key electrical characteristics of 2N681?

    • The transistor has a maximum collector current of 500mA, a maximum power dissipation of 625mW, and a DC current gain (hfe) ranging from 60 to 300.

  4. How do I identify the pin configuration of 2N681?

    • The pinout of 2N681 is typically Emitter-Base-Collector (EBC), with the flat side facing towards you and the pins down, the left pin is the emitter, the middle pin is the base, and the right pin is the collector.

  5. What are some common alternatives to 2N681?

    • Some alternatives include 2N3906, BC557, and BC327, which are also PNP transistors suitable for similar applications.

  6. What are the recommended operating conditions for 2N681?

    • The recommended operating temperature range is -65°C to +200°C, and the maximum voltage across the collector and emitter (Vce) is 50V.

  7. How do I calculate the base resistor value when using 2N681 as a switch?

    • The base resistor value can be calculated using the formula: Rb = (Vcc - Vbe) / Ib, where Vcc is the supply voltage, Vbe is the base-emitter voltage, and Ib is the base current.

  8. Can 2N681 be used in high-frequency applications?

    • While 2N681 can function at moderate frequencies, it is not specifically designed for high-frequency applications due to its transition frequency limitations.

  9. What precautions should be taken when soldering 2N681?

    • Avoid excessive heat during soldering to prevent damage to the transistor, and ensure proper static discharge measures are in place to avoid electrostatic damage.

  10. Where can I find detailed datasheets and application notes for 2N681?

    • Datasheets and application notes for 2N681 can be found on semiconductor manufacturer websites, electronics component distributors, and technical forums dedicated to electronic components.