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2N7228
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2N7228 Transistor

Product Overview

Category:

The 2N7228 is a general-purpose NPN bipolar junction transistor (BJT).

Use:

It is commonly used for amplification and switching of electronic signals in various applications.

Characteristics:

  • Low power dissipation
  • High current gain
  • Medium voltage capability

Package:

The 2N7228 is typically available in a TO-18 metal can package.

Essence:

The essence of the 2N7228 lies in its ability to amplify and switch electronic signals with high efficiency and reliability.

Packaging/Quantity:

The 2N7228 is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Base Voltage (VCBO): 40V
  • Collector-Emitter Voltage (VCEO): 20V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 0.1A
  • Power Dissipation (PD): 0.3W
  • Transition Frequency (fT): 250MHz
  • Operating Temperature Range: -65°C to 200°C

Detailed Pin Configuration

The 2N7228 transistor has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

  • High current gain
  • Low power dissipation
  • Fast switching speed

Advantages

  • Versatile application range
  • Reliable performance
  • Low cost

Disadvantages

  • Limited voltage and current ratings compared to some other transistors
  • Sensitive to temperature variations

Working Principles

The 2N7228 operates based on the principles of bipolar junction transistors, utilizing the flow of charge carriers to amplify or switch electronic signals.

Detailed Application Field Plans

The 2N7228 is commonly used in: - Audio amplifiers - Signal amplification circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N7228 include: - 2N3904 - BC547 - 2N2222

In conclusion, the 2N7228 transistor offers a reliable and cost-effective solution for amplification and switching applications, despite its limitations in voltage and current ratings. Its versatility and functional features make it a popular choice in various electronic circuits.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 2N7228 i tekniska lösningar

  1. What is 2N7228?

    • 2N7228 is a silicon NPN transistor commonly used in electronic circuits for amplification and switching purposes.

  2. What are the typical applications of 2N7228?

    • It is commonly used in audio amplifiers, signal processing circuits, and general purpose switching applications.

  3. What are the key electrical characteristics of 2N7228?

    • The key electrical characteristics include its maximum collector current, voltage ratings, gain bandwidth product, and maximum power dissipation.

  4. How do I determine the pinout of 2N7228?

    • The pinout of 2N7228 can be determined by referring to the datasheet provided by the manufacturer, which typically includes the pin configuration and orientation.

  5. What are the recommended operating conditions for 2N7228?

    • The recommended operating conditions include the specified collector current, base voltage, and temperature range for reliable performance.

  6. Can 2N7228 be used in high-frequency applications?

    • While 2N7228 has moderate frequency capabilities, it may not be suitable for very high-frequency applications due to its internal capacitances and transit times.

  7. What are some common alternatives to 2N7228?

    • Common alternatives include other NPN transistors with similar electrical characteristics, such as 2N3904 or BC547.

  8. How do I calculate the biasing and resistor values for using 2N7228 in an amplifier circuit?

    • The biasing and resistor values can be calculated using standard transistor amplifier design equations and considering the desired operating point and load requirements.

  9. What are the thermal considerations when using 2N7228 in a circuit?

    • Proper heat sinking and thermal management should be considered to ensure that the transistor operates within its specified temperature limits for reliability.

  10. Where can I find more detailed information about using 2N7228 in technical solutions?

    • More detailed information can be found in the datasheets, application notes, and technical resources provided by semiconductor manufacturers and electronics component distributors.