Microsemi Corporation
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2N2945AUB
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2N2945AUB

Product Overview

The 2N2945AUB is a high-power PNP bipolar junction transistor (BJT) designed for general-purpose amplifier and switching applications. It falls under the category of discrete semiconductor products and is commonly used in various electronic circuits due to its high power handling capabilities and reliability.

Basic Information - Category: Discrete Semiconductor - Use: Amplifier and Switching Applications - Characteristics: High Power Handling, Reliable Performance - Package: TO-220 - Essence: High-Power PNP BJT - Packaging/Quantity: Bulk Packaging, Quantity Varies

Specifications

  • Collector-Emitter Voltage (VCEO): 60V
  • Collector-Base Voltage (VCBO): 80V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 10A
  • Power Dissipation (Pd): 75W
  • Transition Frequency (ft): 2MHz
  • Operating Temperature Range: -65°C to 200°C

Detailed Pin Configuration

The 2N2945AUB features a standard TO-220 package with three leads: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

  • High Power Amplification
  • Fast Switching Speed
  • Low Saturation Voltage

Advantages

  • High Power Handling Capability
  • Suitable for High-Frequency Applications
  • Robust Construction

Disadvantages

  • Relatively Large Package Size
  • Limited Operating Temperature Range

Working Principles

The 2N2945AUB operates as a PNP BJT, where the flow of current is controlled by the voltage applied at the base terminal. When used in amplification circuits, it allows for signal amplification with minimal distortion.

Detailed Application Field Plans

The 2N2945AUB finds extensive use in the following application fields: - Audio Amplifiers - Power Supplies - Motor Control Circuits - RF Amplifiers

Detailed and Complete Alternative Models

  1. 2N2907A: Similar PNP BJT with lower power dissipation
  2. 2N3906: General-purpose PNP BJT with lower power handling capability
  3. TIP32C: Complementary NPN BJT with similar power dissipation

In conclusion, the 2N2945AUB is a versatile high-power PNP BJT suitable for a wide range of amplifier and switching applications, offering high power handling and reliable performance.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi 2N2945AUB dalam penyelesaian teknikal

  1. What is the 2N2945AUB transistor used for?

    • The 2N2945AUB is a high-power NPN bipolar junction transistor commonly used in power amplifier and switching applications.

  2. What are the key features of the 2N2945AUB transistor?

    • The 2N2945AUB transistor features a high current capability, low saturation voltage, and high transition frequency, making it suitable for high-power applications.

  3. What is the maximum collector current rating of the 2N2945AUB transistor?

    • The 2N2945AUB transistor has a maximum collector current rating of 4 amperes.

  4. What is the maximum collector-emitter voltage rating of the 2N2945AUB transistor?

    • The 2N2945AUB transistor has a maximum collector-emitter voltage rating of 80 volts.

  5. How can the 2N2945AUB transistor be used in power amplifier circuits?

    • The 2N2945AUB transistor can be used as a power amplifier in audio amplifiers, RF amplifiers, and other high-power signal amplification applications.

  6. What are the typical applications of the 2N2945AUB transistor?

    • Typical applications of the 2N2945AUB transistor include power supplies, motor control, audio amplifiers, and high-frequency inverters.

  7. What are the recommended operating conditions for the 2N2945AUB transistor?

    • The 2N2945AUB transistor should be operated within its specified temperature range and current/voltage ratings to ensure reliable performance.

  8. Can the 2N2945AUB transistor be used in switching applications?

    • Yes, the 2N2945AUB transistor can be used in high-power switching applications due to its fast switching speed and high current capability.

  9. What are the thermal characteristics of the 2N2945AUB transistor?

    • The 2N2945AUB transistor has a low thermal resistance and is designed to efficiently dissipate heat, making it suitable for high-power applications.

  10. Where can I find the detailed datasheet for the 2N2945AUB transistor?

    • The detailed datasheet for the 2N2945AUB transistor can be found on the manufacturer's website or through authorized distributors.