Microsemi Corporation
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2N4906

2N4906 Transistor

Product Overview

The 2N4906 is a PNP bipolar junction transistor (BJT) belonging to the category of electronic components. It is commonly used for amplification and switching applications due to its high current and voltage capabilities. The transistor exhibits characteristics such as low noise, high gain, and fast switching speed. It is typically available in a TO-92 package and is essential for various electronic circuits. The standard packaging includes quantities of 100 or more.

Specifications

  • Maximum Collector-Emitter Voltage: -40V
  • Maximum Collector-Base Voltage: -60V
  • Maximum Emitter-Base Voltage: -5V
  • Continuous Collector Current: -200mA
  • Power Dissipation: 625mW
  • Transition Frequency: 150MHz
  • Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The 2N4906 transistor has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

  • High current and voltage capability
  • Low noise and high gain
  • Fast switching speed

Advantages and Disadvantages

Advantages

  • Suitable for high-power applications
  • Low noise performance
  • Versatile for both amplification and switching

Disadvantages

  • Limited frequency response compared to other transistors
  • Sensitive to temperature variations

Working Principles

The 2N4906 operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a larger current between the collector and emitter terminals. This allows the transistor to amplify or switch electronic signals.

Detailed Application Field Plans

The 2N4906 transistor finds extensive use in various applications, including: - Audio amplifiers - Switching circuits - Voltage regulators - Oscillators - Signal processing circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N4906 include: - BC557 - 2N3906 - MPSA42 - BC558

In conclusion, the 2N4906 transistor is a versatile electronic component with high current and voltage capabilities, making it suitable for amplification and switching applications across various fields.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 2N4906 en soluciones técnicas

  1. What is the 2N4906 transistor used for?

    • The 2N4906 is a PNP bipolar junction transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the key specifications of the 2N4906 transistor?

    • The 2N4906 has a maximum collector current (Ic) of 200mA, a maximum collector-base voltage (Vcbo) of -40V, and a maximum power dissipation (Pd) of 625mW.

  3. How can the 2N4906 be used in amplifier circuits?

    • The 2N4906 can be used as a small-signal amplifier in audio and radio frequency applications due to its low noise and high gain characteristics.

  4. In what types of switching applications can the 2N4906 be utilized?

    • The 2N4906 can be employed in low-power switching circuits such as relay drivers, LED drivers, and general purpose switching applications.

  5. What are the typical operating conditions for the 2N4906 transistor?

    • The 2N4906 operates within a temperature range of -65°C to +150°C and is typically used with a base current (Ib) in the range of 10-100mA.

  6. Can the 2N4906 be used in high-frequency applications?

    • While the 2N4906 can be used in moderate frequency applications, it may not be suitable for very high-frequency designs due to its transition frequency limitations.

  7. What are some common circuit configurations using the 2N4906?

    • The 2N4906 can be configured in common emitter, common collector, and common base configurations depending on the specific application requirements.

  8. Are there any important considerations when designing with the 2N4906?

    • It's crucial to ensure proper biasing and thermal management to maximize the performance and reliability of the 2N4906 in a given circuit.

  9. What are some alternative transistors to the 2N4906?

    • Alternatives to the 2N4906 include the 2N3906, BC557, and BC558, which offer similar PNP transistor characteristics and can be used in comparable applications.

  10. Where can I find detailed datasheets and application notes for the 2N4906?

    • Detailed datasheets and application notes for the 2N4906 can be found on semiconductor manufacturer websites, distributor platforms, and electronics component databases.