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MMBT3904-G
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MMBT3904-G

1. Product Overview

Category:

The MMBT3904-G belongs to the category of small signal NPN transistors.

Use:

It is commonly used for amplification and switching of electronic signals in various applications.

Characteristics:

  • Small size
  • Low power consumption
  • High gain
  • Fast switching speed

Package:

The MMBT3904-G is typically available in a SOT-23 package.

Essence:

This transistor is essential for amplifying weak signals and controlling the flow of current in electronic circuits.

Packaging/Quantity:

The MMBT3904-G is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

2. Specifications

  • Maximum Collector-Base Voltage: 60V
  • Maximum Collector Current: 200mA
  • Power Dissipation: 350mW
  • Transition Frequency: 250MHz
  • Operating Temperature Range: -55°C to 150°C

3. Detailed Pin Configuration

The MMBT3904-G has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)

4. Functional Features

  • High voltage and current gain
  • Low noise
  • Fast switching speed
  • Wide operating temperature range

5. Advantages and Disadvantages

Advantages:

  • Small form factor
  • Versatile applications
  • Reliable performance

Disadvantages:

  • Limited power handling capability
  • Susceptible to thermal issues at high currents

6. Working Principles

The MMBT3904-G operates based on the principles of bipolar junction transistors, where the flow of current between the collector and emitter is controlled by the base current.

7. Detailed Application Field Plans

The MMBT3904-G is widely used in: - Audio amplifiers - Signal processing circuits - Switching circuits - Oscillator circuits - Sensor interfaces

8. Detailed and Complete Alternative Models

Some alternative models to MMBT3904-G include: - 2N3904 - BC547 - PN2222A - 2SC945

In conclusion, the MMBT3904-G is a versatile small signal NPN transistor with wide-ranging applications in electronics due to its compact size, high gain, and fast switching speed. While it has limitations in power handling, its reliability and performance make it a popular choice for various circuit designs.

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10個與MMBT3904-G在技術方案中應用相關的常見問題與解答

  1. What is the MMBT3904-G transistor used for?

    • The MMBT3904-G is a general-purpose NPN bipolar junction transistor commonly used for amplification and switching applications in electronic circuits.

  2. What are the key specifications of the MMBT3904-G transistor?

    • The MMBT3904-G transistor typically has a maximum collector current (Ic) of 200mA, a maximum collector-base voltage (Vcb) of 40V, and a maximum power dissipation (Pd) of 350mW.

  3. How can I use the MMBT3904-G in an amplifier circuit?

    • The MMBT3904-G can be used as a small-signal amplifier in audio or other low-power applications by biasing it properly and connecting it in a common-emitter configuration.

  4. Can the MMBT3904-G be used for switching applications?

    • Yes, the MMBT3904-G can be used to switch moderate loads on and off in digital or analog circuits when biased as a switch in a common-emitter configuration.

  5. What are some typical applications for the MMBT3904-G transistor?

    • Common applications include signal amplification, signal processing, oscillator circuits, and general-purpose switching in electronic devices.

  6. What are the recommended operating conditions for the MMBT3904-G?

    • The MMBT3904-G should be operated within its specified temperature range, typically -55°C to 150°C, and within its maximum voltage and current ratings to ensure reliable performance.

  7. How do I select appropriate biasing resistors for the MMBT3904-G in my circuit?

    • The selection of biasing resistors depends on the specific application and desired operating point. Calculations based on the transistor's characteristics and the circuit requirements are typically used to determine suitable values.

  8. Are there any alternative transistors that can be used in place of the MMBT3904-G?

    • Yes, similar transistors such as 2N3904 or BC547 can often be used as substitutes for the MMBT3904-G in many applications, but it's important to check the specific datasheets for compatibility.

  9. What are the typical gain and frequency response characteristics of the MMBT3904-G?

    • The MMBT3904-G transistor typically has a current gain (hfe) of around 100-300 and can operate at frequencies up to several hundred megahertz, making it suitable for many common applications.

  10. Where can I find detailed information about using the MMBT3904-G in technical solutions?

    • Detailed information, including application notes and example circuits, can be found in the manufacturer's datasheet for the MMBT3904-G transistor. Additionally, online resources and electronics forums may provide practical insights and design tips for using this transistor in various technical solutions.