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2N4401_D81Z
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2N4401_D81Z

Product Overview

Category:

The 2N4401_D81Z belongs to the category of small signal NPN bipolar junction transistors (BJT).

Use:

It is commonly used for general-purpose amplification and switching applications.

Characteristics:

  • Small signal transistor
  • NPN polarity
  • High current gain
  • Low power dissipation

Package:

The 2N4401_D81Z is typically available in a TO-92 package.

Essence:

This transistor is essential for amplifying weak signals and controlling larger currents.

Packaging/Quantity:

The 2N4401_D81Z is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Base Voltage (VCBO): 60V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 600mA
  • Power Dissipation (PD): 625mW
  • Transition Frequency (fT): 250MHz
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The 2N4401_D81Z has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

  • High current gain
  • Low noise
  • Fast switching speed
  • Wide operating temperature range

Advantages and Disadvantages

Advantages

  • High current gain allows for small input signals to control larger output currents.
  • Low noise makes it suitable for audio applications.
  • Fast switching speed enables rapid on/off transitions.

Disadvantages

  • Limited power dissipation may restrict its use in high-power applications.
  • Moderate voltage and current ratings compared to other transistors in its class.

Working Principles

The 2N4401_D81Z operates based on the principles of bipolar junction transistors, where the flow of current is controlled by the application of a small input signal at the base terminal, resulting in amplified current flow between the collector and emitter terminals.

Detailed Application Field Plans

The 2N4401_D81Z finds extensive use in various electronic circuits, including: - Audio amplifiers - Switching circuits - Signal amplification - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N4401_D81Z include: - 2N4400 - 2N4402 - BC547 - BC548 - BC549

In conclusion, the 2N4401_D81Z is a versatile small signal transistor with applications in amplification and switching circuits across various industries.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N4401_D81Z v technických řešeních

  1. What is the 2N4401_D81Z transistor used for?

    • The 2N4401_D81Z is a general-purpose NPN bipolar junction transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the key specifications of the 2N4401_D81Z transistor?

    • The 2N4401_D81Z has a maximum collector current of 600mA, a maximum collector-base voltage of 40V, and a maximum power dissipation of 625mW.

  3. How do I identify the pinout of the 2N4401_D81Z transistor?

    • The pinout of the 2N4401_D81Z transistor is typically Emitter (E), Base (B), and Collector (C) when viewing the flat side with the leads pointing downward.

  4. Can the 2N4401_D81Z be used for low-power amplification?

    • Yes, the 2N4401_D81Z is suitable for low-power audio and signal amplification due to its moderate current and voltage ratings.

  5. What are some common circuit configurations using the 2N4401_D81Z transistor?

    • Common configurations include common emitter amplifiers, switch circuits, and oscillator circuits.

  6. Is the 2N4401_D81Z suitable for high-frequency applications?

    • While the 2N4401_D81Z can be used in moderate frequency applications, it may not be ideal for very high-frequency designs due to its transition frequency characteristics.

  7. What are the typical operating conditions for the 2N4401_D81Z transistor?

    • The 2N4401_D81Z operates within a temperature range of -55°C to 150°C and is commonly used in ambient conditions with low to moderate humidity.

  8. Can the 2N4401_D81Z be used in digital logic circuits?

    • Yes, the 2N4401_D81Z can be utilized in simple digital logic circuits such as level shifting and interfacing.

  9. Are there any common failure modes or issues associated with the 2N4401_D81Z transistor?

    • Common issues include thermal runaway at high currents, saturation voltage limitations, and potential for secondary breakdown under certain conditions.

  10. Where can I find detailed datasheets and application notes for the 2N4401_D81Z transistor?

    • Datasheets and application notes for the 2N4401_D81Z can be obtained from semiconductor manufacturers' websites, distributor platforms, or technical literature repositories.