ON Semiconductor
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
MMBT3904HLT1G

MMBT3904HLT1G

Introduction

The MMBT3904HLT1G is a widely used NPN bipolar junction transistor (BJT) belonging to the category of small signal transistors. This device is commonly utilized in various electronic circuits due to its versatile characteristics and reliability.

Basic Information Overview

  • Category: Small Signal Transistor
  • Use: Amplification, Switching
  • Characteristics: High voltage and current gain, low noise, fast switching speed
  • Package: SOT-23
  • Essence: NPN BJT
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Collector-Base Voltage (VCBO): 60V
  • Collector-Emitter Voltage (VCEO): 40V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 200mA
  • Power Dissipation (Pd): 350mW
  • Transition Frequency (fT): 250MHz

Detailed Pin Configuration

The MMBT3904HLT1G features a standard SOT-23 package with the following pin configuration: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

  • High voltage and current gain make it suitable for amplification applications.
  • Low noise characteristic enables use in sensitive signal processing circuits.
  • Fast switching speed allows for efficient switching applications.

Advantages and Disadvantages

Advantages

  • Versatile application in amplification and switching circuits.
  • Compact SOT-23 package for space-constrained designs.
  • High transition frequency for high-frequency applications.

Disadvantages

  • Limited power dissipation compared to larger transistors.
  • Moderate collector current rating may restrict certain high-power applications.

Working Principles

The MMBT3904HLT1G operates based on the principles of bipolar junction transistors, utilizing the flow of charge carriers across its three terminals to amplify or switch electronic signals.

Detailed Application Field Plans

The MMBT3904HLT1G finds extensive use in the following application fields: - Audio amplifiers - Signal processing circuits - Switching regulators - Oscillator circuits - Logic level shifting

Detailed and Complete Alternative Models

  • MMBT2222A: Similar NPN transistor with higher collector current rating.
  • MMBT4401: Complementary PNP transistor for pairing in push-pull amplifier configurations.
  • BC547: General-purpose NPN transistor with comparable characteristics.

In conclusion, the MMBT3904HLT1G offers a reliable and versatile solution for small signal amplification and switching applications, making it a popular choice among electronic circuit designers.

[Word count: 387]

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MMBT3904HLT1G v technických řešeních

  1. What is the MMBT3904HLT1G?

    • The MMBT3904HLT1G is a general-purpose NPN bipolar junction transistor (BJT) commonly used in amplification and switching applications.

  2. What are the typical applications of MMBT3904HLT1G?

    • It is commonly used in audio amplifiers, signal amplification, voltage regulation, and digital logic circuits.

  3. What are the key electrical characteristics of MMBT3904HLT1G?

    • The transistor has a maximum collector current of 200mA, a maximum collector-emitter voltage of 40V, and a DC current gain (hFE) ranging from 100 to 300.

  4. How do I select the appropriate biasing and operating conditions for MMBT3904HLT1G?

    • The biasing and operating conditions depend on the specific application requirements, but typically involve selecting appropriate base current and collector-emitter voltage levels to ensure proper transistor operation.

  5. Can MMBT3904HLT1G be used in high-frequency applications?

    • Yes, it can be used in moderate frequency applications due to its transition frequency (fT) of around 250MHz.

  6. What are the thermal considerations for MMBT3904HLT1G?

    • Thermal considerations include ensuring proper heat dissipation to prevent overheating, especially when operating at higher current levels.

  7. Are there any common pitfalls or challenges when using MMBT3904HLT1G in circuit design?

    • Common challenges include ensuring proper biasing, avoiding thermal runaway, and minimizing parasitic capacitances in high-frequency applications.

  8. What are some recommended alternative transistors to MMBT3904HLT1G?

    • Alternative transistors with similar characteristics include 2N2222, BC547, and BC548.

  9. Can MMBT3904HLT1G be used in low-power applications?

    • Yes, it is suitable for low-power applications due to its low collector current and voltage ratings.

  10. Where can I find detailed technical specifications and application notes for MMBT3904HLT1G?

    • Detailed technical specifications and application notes can be found in the manufacturer's datasheet and application notes, as well as in various electronics component databases and resources.