Central Semiconductor Corp
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2N4854

2N4854 Transistor

Product Overview

The 2N4854 is a silicon NPN transistor designed for general-purpose amplifier and switching applications. It falls under the category of discrete semiconductor devices and is commonly used in electronic circuits for its amplification and switching capabilities. The transistor exhibits characteristics such as high current gain, low noise, and low power dissipation. It is typically packaged in a TO-92 package and is available in various packaging quantities to suit different production needs.

Specifications

  • Type: NPN
  • Maximum Power Dissipation: 625mW
  • 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): 150MHz
  • Package Type: TO-92
  • Packaging Quantity: Varies

Detailed Pin Configuration

The 2N4854 transistor has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

  • High current gain
  • Low noise
  • Low power dissipation
  • Suitable for general-purpose applications

Advantages and Disadvantages

Advantages

  • Versatile usage in amplifier and switching circuits
  • High current gain allows for signal amplification
  • Low noise makes it suitable for sensitive applications

Disadvantages

  • Limited maximum power dissipation
  • Relatively low collector-emitter voltage rating

Working Principles

The 2N4854 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. This property allows the transistor to amplify signals or act as a switch in electronic circuits.

Detailed Application Field Plans

The 2N4854 transistor finds application in various electronic circuits, including: - Audio amplifiers - Signal amplification stages - Switching circuits - Oscillator circuits - Voltage regulators

Detailed and Complete Alternative Models

Some alternative models to the 2N4854 transistor include: - 2N2222 - BC547 - 2N3904 - PN2222

In conclusion, the 2N4854 transistor is a versatile component with applications in amplification and switching circuits. Its high current gain and low noise make it suitable for a wide range of electronic designs.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N4854 v technických řešeních

  1. What is the 2N4854 transistor used for?

    • The 2N4854 transistor is commonly used for amplification and switching applications in electronic circuits.

  2. What are the key features of the 2N4854 transistor?

    • The 2N4854 transistor features high gain, low noise, and low power consumption, making it suitable for various technical solutions.

  3. What are the typical operating conditions for the 2N4854 transistor?

    • The 2N4854 transistor operates within a voltage range of 15V to 30V and a current range of 10mA to 100mA.

  4. How can the 2N4854 transistor be used in amplifier circuits?

    • The 2N4854 transistor can be configured as a common emitter or common collector amplifier to provide signal amplification.

  5. Can the 2N4854 transistor be used for switching applications?

    • Yes, the 2N4854 transistor can be used for low-power switching applications due to its fast switching speed and low saturation voltage.

  6. What are the thermal considerations when using the 2N4854 transistor?

    • Proper heat sinking is important to ensure that the 2N4854 transistor operates within its temperature limits and maintains reliability.

  7. Are there any specific precautions to consider when handling the 2N4854 transistor?

    • Avoid static discharge and ensure proper ESD protection when handling the 2N4854 transistor to prevent damage.

  8. What are the recommended soldering techniques for the 2N4854 transistor?

    • Use a temperature-controlled soldering iron and follow the manufacturer's guidelines to prevent overheating and potential damage to the transistor.

  9. Can the 2N4854 transistor be used in high-frequency applications?

    • While the 2N4854 transistor has moderate frequency capabilities, it may not be suitable for very high-frequency applications due to its internal capacitances.

  10. Where can I find detailed specifications and application notes for the 2N4854 transistor?

    • Detailed specifications and application notes for the 2N4854 transistor can be found in the manufacturer's datasheet and application guides.