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MMBT3904T-13

MMBT3904T-13

Introduction

The MMBT3904T-13 is a widely used NPN bipolar junction transistor (BJT) belonging to the category of small signal transistors. This versatile component finds applications in various electronic circuits due to its unique characteristics and performance.

Basic Information Overview

  • Category: Small Signal Transistor
  • Use: Amplification, Switching
  • Characteristics: High voltage and current capability, low noise, high frequency operation
  • Package: SOT-23
  • Essence: The MMBT3904T-13 is essential for amplifying weak signals and switching applications in electronic circuits.
  • Packaging/Quantity: Available in reels with varying quantities depending on manufacturer specifications.

Specifications

  • Maximum Power Dissipation: 350mW
  • Collector-Base Voltage (VCBO): 60V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 6V
  • Continuous Collector Current (IC): 200mA
  • DC Current Gain (hFE): 100 - 300
  • Transition Frequency (fT): 250MHz

Detailed Pin Configuration

The MMBT3904T-13 transistor has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

  • High voltage and current capability
  • Low noise
  • High frequency operation
  • Fast switching speed

Advantages and Disadvantages

Advantages

  • Versatile use in amplification and switching circuits
  • Compact SOT-23 package
  • Wide operating frequency range

Disadvantages

  • Limited maximum power dissipation
  • Relatively low collector current compared to other transistors

Working Principles

The MMBT3904T-13 operates based on the principles of amplification and control of current flow. When a small current flows into the base of the transistor, it allows a larger current to flow from the collector to the emitter, enabling amplification and switching functions in electronic circuits.

Detailed Application Field Plans

The MMBT3904T-13 is commonly used in the following applications: - Audio amplifiers - Signal amplification in sensor circuits - Switching circuits in electronic devices - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the MMBT3904T-13 include: - 2N2222A - BC547 - BC548 - 2N3904

In conclusion, the MMBT3904T-13 NPN transistor is a crucial component in electronic circuits, offering high performance in amplification and switching applications. Its compact size and versatile characteristics make it an essential part of modern electronic designs.

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技術ソリューションにおける MMBT3904T-13 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the MMBT3904T-13?

    • The MMBT3904T-13 is a popular NPN general-purpose transistor used in a wide range of electronic applications.

  2. What are the typical applications of MMBT3904T-13?

    • It is commonly used in amplification, switching, and signal processing circuits in various technical solutions.

  3. What are the key electrical characteristics of MMBT3904T-13?

    • The transistor has a maximum collector current of 200mA, a maximum collector-base voltage of 40V, and a maximum power dissipation of 350mW.

  4. How do I properly bias MMBT3904T-13 in an amplifier circuit?

    • Proper biasing involves setting the base voltage to ensure the transistor operates in its active region for linear amplification.

  5. Can MMBT3904T-13 be used in low-power switching applications?

    • Yes, it can be used in low-power switching applications due to its fast switching speed and low saturation voltage.

  6. What are the thermal considerations when using MMBT3904T-13 in a design?

    • Thermal considerations include ensuring proper heat sinking or thermal management to prevent overheating and ensure reliable operation.

  7. Are there any common pitfalls to avoid when using MMBT3904T-13?

    • It's important to avoid exceeding the maximum ratings, improper biasing, and inadequate thermal design to prevent damage or performance issues.

  8. Can MMBT3904T-13 be used in high-frequency applications?

    • While it has moderate frequency capabilities, it may not be suitable for very high-frequency applications due to its transition frequency limitations.

  9. What are some alternative transistors to consider if MMBT3904T-13 is not available?

    • Alternatives include 2N2222, BC547, and BC548, which have similar characteristics and can be used as substitutes in many applications.

  10. Where can I find detailed application notes and reference designs for MMBT3904T-13?

    • Detailed application notes and reference designs can often be found in the manufacturer's datasheet, application guides, and online technical forums.