Rohm Semiconductor
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MMST3904T146

MMST3904T146

Product Overview

  • Category: Transistor
  • Use: Amplification and switching in electronic circuits
  • Characteristics: Small signal NPN bipolar junction transistor, high current gain, low voltage drop
  • Package: SOT-23
  • Essence: Miniature surface-mount transistor
  • Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

  • Maximum Collector-Base Voltage (Vcb): 40V
  • Maximum Collector Current (Ic): 200mA
  • DC Current Gain (hfe): 100 - 300
  • Power Dissipation (Pd): 225mW
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

  1. Emitter (E)
  2. Base (B)
  3. Collector (C)

Functional Features

  • High current gain
  • Low saturation voltage
  • Fast switching speed
  • Small footprint

Advantages

  • Suitable for high-density circuit designs
  • Low power consumption
  • Wide operating temperature range

Disadvantages

  • Limited maximum collector current compared to some alternatives
  • Sensitive to overvoltage conditions

Working Principles

The MMST3904T146 is a small signal NPN bipolar junction transistor that operates by controlling the flow of current between its collector and emitter terminals using the base terminal. It amplifies small signals and can be used for switching applications in electronic circuits.

Detailed Application Field Plans

  • Audio amplifiers
  • Signal amplification in sensor circuits
  • Switching applications in digital logic circuits
  • Oscillator circuits

Detailed and Complete Alternative Models

  • 2N3904
  • BC547
  • 2SC945
  • BC337

This completes the entry for MMST3904T146, covering its product details, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

10個與MMST3904T146在技術方案中應用相關的常見問題與解答

  1. What is MMST3904T146?

    • MMST3904T146 is a high-performance NPN bipolar junction transistor (BJT) commonly used in technical solutions for amplification and switching applications.

  2. What are the key features of MMST3904T146?

    • The key features of MMST3904T146 include high current gain, low saturation voltage, and low noise performance, making it suitable for various technical solutions.

  3. In what types of technical solutions is MMST3904T146 commonly used?

    • MMST3904T146 is commonly used in audio amplifiers, signal processing circuits, sensor interfaces, and other applications requiring low-power amplification and signal conditioning.

  4. What are the typical operating conditions for MMST3904T146?

    • The typical operating conditions for MMST3904T146 include a maximum collector current of 200mA, a maximum collector-emitter voltage of 40V, and an operating temperature range of -55°C to 150°C.

  5. How does MMST3904T146 compare to other transistors in its class?

    • MMST3904T146 offers a good balance of performance, size, and cost, making it a popular choice for many technical solutions compared to other transistors in its class.

  6. What are the recommended circuit configurations for using MMST3904T146?

    • Common circuit configurations for MMST3904T146 include common emitter, common base, and emitter follower configurations, depending on the specific application requirements.

  7. Are there any important considerations when designing with MMST3904T146?

    • Designers should consider proper biasing, thermal management, and voltage/current limitations to ensure reliable and stable operation of MMST3904T146 in their technical solutions.

  8. Can MMST3904T146 be used in high-frequency applications?

    • While MMST3904T146 is not specifically designed for high-frequency applications, it can still be used effectively in moderate frequency ranges with appropriate circuit design.

  9. What are the potential alternatives to MMST3904T146 for specific technical solutions?

    • Depending on the exact requirements, alternatives to MMST3904T146 may include other NPN transistors such as 2N2222, BC547, or BC548, each with its own set of characteristics and trade-offs.

  10. Where can I find detailed technical specifications and application notes for MMST3904T146?

    • Detailed technical specifications and application notes for MMST3904T146 can be found in the datasheet provided by the manufacturer, as well as in relevant technical literature and online resources.