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2N3905TAR
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2N3905TAR

Product Overview

Category

The 2N3905TAR belongs to the category of bipolar junction transistors (BJTs).

Use

It is commonly used as a general-purpose PNP transistor in various electronic circuits.

Characteristics

  • Low power, low frequency amplifier
  • High current gain
  • Low noise
  • Suitable for switching applications

Package

The 2N3905TAR is typically available in a TO-92 package.

Essence

This transistor is essential for amplifying and switching electronic signals in a wide range of applications.

Packaging/Quantity

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

Specifications

  • Collector-Base Voltage (VCBO): 40V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 200mA
  • Power Dissipation (Ptot): 350mW
  • Transition Frequency (ft): 250MHz
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The 2N3905TAR has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

  • Amplification of weak electronic signals
  • Switching of electronic circuits
  • Compatibility with various electronic components

Advantages

  • High current gain
  • Low cost
  • Versatile usage in different circuit designs

Disadvantages

  • Limited power handling capability
  • Relatively low voltage and current ratings

Working Principles

The 2N3905TAR operates based on the principles of bipolar junction transistors, where the flow of current between its terminals is controlled by the application of a small input signal.

Detailed Application Field Plans

This transistor finds applications in: - Audio amplifiers - Signal amplification circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N3905TAR include: - BC557 - 2N4403 - 2N3906 - BC558

In conclusion, the 2N3905TAR is a versatile PNP transistor with characteristics suitable for a wide range of electronic applications, making it a popular choice among hobbyists and professionals alike.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan 2N3905TAR dalam solusi teknis

  1. What is the 2N3905TAR transistor used for?

    • The 2N3905TAR is a general-purpose PNP bipolar junction transistor commonly used in amplification and switching applications.

  2. What are the typical operating conditions for the 2N3905TAR?

    • The 2N3905TAR typically operates at a maximum collector-emitter voltage of 40V and a maximum collector current of 200mA.

  3. How do I identify the pinout of the 2N3905TAR transistor?

    • The pinout of the 2N3905TAR is typically Emitter (E), Base (B), and Collector (C) when viewing the flat side with the leads pointing downward.

  4. What are some common circuit configurations using the 2N3905TAR?

    • Common circuit configurations include common emitter amplifiers, switch circuits, and voltage regulators.

  5. What are the key characteristics of the 2N3905TAR that make it suitable for technical solutions?

    • The 2N3905TAR offers low noise, high current gain, and low power dissipation, making it versatile for various technical solutions.

  6. Can the 2N3905TAR be used in audio amplifier applications?

    • Yes, the 2N3905TAR can be used in low-power audio amplifier applications due to its low noise and high gain characteristics.

  7. What are the thermal considerations when using the 2N3905TAR in technical solutions?

    • It's important to consider heat dissipation and ensure proper thermal management to prevent overheating, especially when operating near the maximum ratings.

  8. Are there any common failure modes or issues associated with the 2N3905TAR?

    • Common issues may include thermal runaway under high current conditions or breakdown due to exceeding maximum voltage ratings.

  9. Can the 2N3905TAR be used in switching power supply designs?

    • Yes, the 2N3905TAR can be used in low-power switching power supply designs due to its switching capabilities and moderate voltage and current ratings.

  10. Where can I find detailed application notes and reference designs for the 2N3905TAR?

    • Detailed application notes and reference designs can often be found in the manufacturer's datasheet, application notes, or technical resources provided by semiconductor companies.