Microsemi Corporation
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2N4914

2N4914 Transistor

Product Overview

The 2N4914 is a bipolar junction NPN transistor commonly used in electronic circuits. It falls under the category of discrete semiconductor devices and is widely utilized for amplification, switching, and voltage regulation applications. Known for its high gain and low noise characteristics, the 2N4914 is typically packaged in a TO-39 metal can and is available in various quantities.

Characteristics

  • Category: Discrete Semiconductor Device
  • Use: Amplification, Switching, Voltage Regulation
  • Package: TO-39 Metal Can
  • Quantity: Various

Specifications

The 2N4914 transistor features a maximum collector-base voltage (VCBO) of 80V, a maximum collector-emitter voltage (VCEO) of 40V, and a maximum emitter-base voltage (VEBO) of 5V. It has a continuous collector current (IC) rating of 0.1A and a power dissipation (PD) of 0.5W.

Detailed Pin Configuration

The 2N4914 transistor has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

The 2N4914 offers high gain, low noise, and reliable performance, making it suitable for audio amplification and signal processing applications. Its compact size and robust construction enhance its versatility in various circuit designs.

Advantages and Disadvantages

Advantages

  • High Gain
  • Low Noise
  • Compact Size

Disadvantages

  • Limited Power Handling Capacity
  • Restricted Frequency Range

Working Principles

When biased correctly, the 2N4914 allows a small current to control a much larger current between its collector and emitter terminals. This amplification process forms the basis of its functionality in electronic circuits.

Detailed Application Field Plans

The 2N4914 transistor finds extensive use in audio amplifiers, preamplifiers, and low-power switching circuits. Its ability to provide high gain with minimal noise makes it an ideal choice for applications requiring precise signal amplification.

Detailed and Complete Alternative Models

Some alternative models to the 2N4914 include the 2N2222, BC547, and 2N3904 transistors. These alternatives offer similar characteristics and can be substituted based on specific design requirements.

In conclusion, the 2N4914 transistor serves as a fundamental component in electronic circuitry, providing reliable amplification and switching capabilities across various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N4914 v technických řešeních

  1. What is 2N4914?

    • 2N4914 is a PNP silicon transistor commonly used for general-purpose switching and amplification in electronic circuits.

  2. What are the typical applications of 2N4914?

    • It is commonly used in audio amplifiers, voltage regulators, and general-purpose switching circuits.

  3. What are the key electrical characteristics of 2N4914?

    • The key electrical characteristics include a maximum collector-base voltage of 60V, a maximum collector current of 100mA, and a DC current gain (hFE) of 40 to 160.

  4. How do I identify the pinout of 2N4914?

    • The pinout of 2N4914 is typically identified as the emitter (E), base (B), and collector (C).

  5. What are the recommended operating conditions for 2N4914?

    • The recommended operating conditions include a maximum power dissipation of 625mW, a maximum junction temperature of 150°C, and a storage temperature range of -65°C to 200°C.

  6. Can 2N4914 be used for high-frequency applications?

    • No, 2N4914 is not suitable for high-frequency applications due to its limited frequency response.

  7. What are some common alternatives to 2N4914?

    • Common alternatives to 2N4914 include 2N3906, BC557, and BC558 transistors, which have similar PNP characteristics.

  8. How should 2N4914 be handled to prevent damage?

    • 2N4914 should be handled with proper ESD precautions and stored in anti-static packaging to prevent damage from electrostatic discharge.

  9. Can 2N4914 be used in automotive applications?

    • Yes, 2N4914 can be used in certain automotive applications, but it is important to ensure that it meets the specific requirements and standards for automotive electronics.

  10. Where can I find detailed datasheets and application notes for 2N4914?

    • Detailed datasheets and application notes for 2N4914 can be found on semiconductor manufacturer websites, distributor platforms, or technical documentation repositories.