ON Semiconductor
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PN2222A_D81Z
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PN2222A_D81Z

Product Overview

Category

The PN2222A_D81Z belongs to the category of NPN bipolar junction transistors (BJTs).

Use

It is commonly used as a general-purpose amplifier or switch in electronic circuits.

Characteristics

  • Low power, high voltage applications
  • High current gain
  • Low saturation voltage

Package

The PN2222A_D81Z is typically available in a TO-92 package.

Essence

This transistor is essential for amplifying and switching electronic signals in various applications.

Packaging/Quantity

It is usually packaged in reels or tubes with quantities ranging from hundreds to thousands.

Specifications

  • Collector-Base Voltage (VCBO): 75V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 600mA
  • Power Dissipation (PD): 625mW
  • Transition Frequency (fT): 300MHz

Detailed Pin Configuration

  1. Emitter (E)
  2. Base (B)
  3. Collector (C)

Functional Features

  • Amplification of weak signals
  • Switching high-power loads
  • Reliable performance in low-power applications

Advantages

  • High current gain
  • Low cost
  • Versatile usage in various electronic circuits

Disadvantages

  • Limited power dissipation capability
  • Susceptible to thermal runaway in high-power applications

Working Principles

The PN2222A_D81Z operates based on the principles of controlling the flow of current between its collector and emitter terminals using the base terminal. By applying a small current at the base, a larger current can be allowed to flow between the collector and emitter, enabling amplification or switching functions.

Detailed Application Field Plans

The PN2222A_D81Z finds extensive use in: - Audio amplifiers - Signal amplification circuits - Switching circuits - LED drivers - Motor control circuits

Detailed and Complete Alternative Models

Some alternative models to PN2222A_D81Z include: - 2N3904 - BC547 - 2N2222

In conclusion, the PN2222A_D81Z is a versatile NPN BJT that offers reliable performance in amplification and switching applications across various electronic circuits.

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Énumérez 10 questions et réponses courantes liées à l'application de PN2222A_D81Z dans les solutions techniques

Sure, here are 10 common questions and answers related to the application of PN2222A_D81Z in technical solutions:

  1. What is the PN2222A_D81Z transistor used for?

    • The PN2222A_D81Z is a general-purpose NPN bipolar junction transistor commonly used for amplification and switching applications.

  2. What are the key specifications of the PN2222A_D81Z transistor?

    • The PN2222A_D81Z has a maximum collector current of 600mA, a maximum collector-base voltage of 40V, and a maximum power dissipation of 625mW.

  3. How can I use the PN2222A_D81Z transistor as a switch?

    • You can use the PN2222A_D81Z transistor as a switch by biasing it into either cutoff or saturation region to control the flow of current through the collector-emitter path.

  4. Can the PN2222A_D81Z be used in audio amplifier circuits?

    • Yes, the PN2222A_D81Z can be used in small signal audio amplifier circuits due to its low noise and high gain characteristics.

  5. What are some typical applications of the PN2222A_D81Z transistor?

    • Typical applications include signal amplification, switching loads such as relays and LEDs, and driving small motors.

  6. What are the recommended operating conditions for the PN2222A_D81Z transistor?

    • The PN2222A_D81Z should be operated within a temperature range of -55°C to 150°C and with appropriate base current and voltage levels.

  7. How do I calculate the base resistor value for driving the PN2222A_D81Z transistor?

    • The base resistor value can be calculated using Ohm's law and the desired base current to ensure proper biasing of the transistor.

  8. Can the PN2222A_D81Z be used in high-frequency applications?

    • While the PN2222A_D81Z can be used in moderate frequency applications, it may not be suitable for very high-frequency designs due to its transition frequency limitations.

  9. Are there any alternative transistors that can be used in place of the PN2222A_D81Z?

    • Yes, similar transistors like 2N3904 or BC547 can be used as alternatives, but it's important to check their specifications and pin configurations.

  10. Where can I find detailed datasheets and application notes for the PN2222A_D81Z transistor?

    • Datasheets and application notes for the PN2222A_D81Z can be found on the manufacturer's website or through authorized distributors.

I hope these questions and answers are helpful for your technical solutions involving the PN2222A_D81Z transistor! If you have any more specific questions, feel free to ask.