Central Semiconductor Corp
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2N3640

2N3640 Transistor

Product Overview

The 2N3640 is a silicon PNP transistor that falls under the category of electronic components. It is commonly used in amplification and switching circuits due to its high gain and low noise characteristics. The transistor is typically packaged in a TO-39 metal can package and is available in various quantities.

Basic Information

  • Category: Electronic Component
  • Use: Amplification and Switching Circuits
  • Characteristics: High Gain, Low Noise
  • Package: TO-39 Metal Can
  • Packaging/Quantity: Various Quantities Available

Specifications

  • Type: PNP
  • Maximum Power Dissipation: 625mW
  • Maximum Collector-Emitter Voltage: -40V
  • Maximum Collector Current: -200mA
  • Transition Frequency: 50MHz

Detailed Pin Configuration

The 2N3640 transistor has three pins: the emitter (E), base (B), and collector (C). The pin configuration is as follows: - Emitter (E): Pin 1 - Base (B): Pin 2 - Collector (C): Pin 3

Functional Features

The 2N3640 transistor offers high gain and low noise, making it suitable for use in audio amplifiers, signal processing circuits, and switching applications. Its PNP configuration allows for easy integration into various circuit designs.

Advantages and Disadvantages

Advantages

  • High Gain
  • Low Noise
  • Suitable for Audio Amplification
  • Easy Integration into Circuit Designs

Disadvantages

  • Limited Maximum Collector-Emitter Voltage
  • Relatively Low Maximum Collector Current

Working Principles

The 2N3640 operates based on the principles of bipolar junction transistors (BJTs). When a small current flows into the base terminal, it controls a larger current flow between the collector and emitter terminals, allowing for amplification or switching of signals.

Detailed Application Field Plans

The 2N3640 transistor finds application in various fields, including: - Audio Amplifiers - Signal Processing Circuits - Switching Circuits - Oscillator Circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N3640 transistor include: - 2N3638 - 2N3639 - 2N3641 - BC557

In conclusion, the 2N3640 transistor is a versatile electronic component with high gain and low noise characteristics, making it suitable for amplification and switching applications in various fields.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N3640 v technických řešeních

  1. What is the 2N3640 transistor used for?

    • The 2N3640 is a general-purpose PNP transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the typical operating conditions for the 2N3640?

    • The 2N3640 typically operates with a maximum collector current of 200mA, a maximum collector-emitter voltage of 60V, and a power dissipation of 625mW.

  3. How do I identify the pinout of the 2N3640 transistor?

    • The pinout of the 2N3640 transistor is typically identified as the emitter (E), base (B), and collector (C) when viewing the flat side with the leads pointing down.

  4. Can the 2N3640 be used for audio amplifier applications?

    • Yes, the 2N3640 can be used in low-power audio amplifier circuits due to its moderate current and voltage ratings.

  5. What are some common alternatives to the 2N3640 transistor?

    • Common alternatives to the 2N3640 include the 2N3906, BC557, and BC558 transistors, which have similar characteristics and can be used in its place.

  6. Is the 2N3640 suitable for high-frequency applications?

    • No, the 2N3640 is not typically recommended for high-frequency applications due to its limited frequency response and transition frequency.

  7. What are the typical gain characteristics of the 2N3640?

    • The 2N3640 has a moderate DC current gain (hFE) ranging from 100 to 300, making it suitable for various amplification tasks.

  8. Can the 2N3640 be used in switching applications?

    • Yes, the 2N3640 can be used for low-power switching applications such as driving relays, small motors, or LEDs.

  9. What are the thermal considerations when using the 2N3640?

    • It's important to consider proper heat sinking for the 2N3640, especially when operating near its maximum power dissipation, to ensure reliable performance and longevity.

  10. Where can I find detailed specifications and application notes for the 2N3640?

    • Detailed specifications and application notes for the 2N3640 can be found in the manufacturer's datasheet, which provides comprehensive information on its electrical characteristics and recommended usage guidelines.