ON Semiconductor
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MMBTA55LT1
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MMBTA55LT1

Product Overview

Category

The MMBTA55LT1 belongs to the category of small signal transistors.

Use

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

Characteristics

  • Low power dissipation
  • High current gain
  • Small package size

Package

The MMBTA55LT1 is typically available in a SOT-23 package.

Essence

This transistor is essential for electronic circuit design, particularly in low-power applications.

Packaging/Quantity

It is usually packaged in reels containing a specific quantity, such as 3000 units per reel.

Specifications

  • Collector-Base Voltage (VCBO): 80V
  • Collector-Emitter Voltage (VCEO): 50V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 600mA
  • Power Dissipation (PD): 225mW
  • Transition Frequency (fT): 150MHz

Detailed Pin Configuration

The MMBTA55LT1 has three pins: collector, base, and emitter. The pin configuration is as follows: - Collector (C) - Pin 1 - Base (B) - Pin 2 - Emitter (E) - Pin 3

Functional Features

  • High current gain
  • Low power dissipation
  • Fast switching speed

Advantages

  • Small package size
  • Suitable for low-power applications
  • High transition frequency

Disadvantages

  • Limited maximum voltage ratings
  • Moderate collector current rating

Working Principles

The MMBTA55LT1 operates based on the principles of bipolar junction transistors, where the control of current flow between the collector and emitter is achieved through the application of a small current at the base terminal.

Detailed Application Field Plans

The MMBTA55LT1 is widely used in the following applications: - Audio amplifiers - Signal amplification circuits - Switching circuits in portable electronic devices

Detailed and Complete Alternative Models

Some alternative models to the MMBTA55LT1 include: - 2N3904 - BC547 - 2SC945

In conclusion, the MMBTA55LT1 is a small signal transistor with characteristics suitable for low-power applications. Its compact package and high current gain make it an essential component in various electronic circuits, particularly those requiring amplification and switching of signals.

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Énumérez 10 questions et réponses courantes liées à l'application de MMBTA55LT1 dans les solutions techniques

  1. What is MMBTA55LT1?

    • MMBTA55LT1 is a general-purpose NPN transistor commonly used in electronic circuits for amplification and switching applications.

  2. What are the typical applications of MMBTA55LT1?

    • MMBTA55LT1 is often used in audio amplifiers, signal processing circuits, and as a switch in digital logic circuits.

  3. What are the key electrical characteristics of MMBTA55LT1?

    • The MMBTA55LT1 has a maximum collector current of 600mA, a maximum collector-emitter voltage of 80V, and a maximum power dissipation of 350mW.

  4. How do I identify the pin configuration of MMBTA55LT1?

    • The pinout of MMBTA55LT1 is typically Emitter-Base-Collector (EBC) when viewing the flat side with the leads pointing down.

  5. What are some common alternatives to MMBTA55LT1?

    • Common alternatives to MMBTA55LT1 include 2N3904, BC547, and PN2222A transistors, which have similar characteristics and can be used interchangeably in many applications.

  6. Can MMBTA55LT1 be used for high-frequency applications?

    • While MMBTA55LT1 can be used for moderate frequency applications, it may not be suitable for very high-frequency applications due to its transition frequency and capacitance characteristics.

  7. What are the recommended operating conditions for MMBTA55LT1?

    • MMBTA55LT1 is typically operated within a temperature range of -55°C to 150°C and should be used within its specified voltage and current limits for optimal performance.

  8. How do I calculate the biasing resistors for MMBTA55LT1 in an amplifier circuit?

    • The biasing resistors for MMBTA55LT1 can be calculated using the desired quiescent collector current and the transistor's base-emitter voltage drop.

  9. Can MMBTA55LT1 be used in a Darlington pair configuration?

    • Yes, MMBTA55LT1 can be used in a Darlington pair configuration to achieve higher current gain and lower saturation voltage.

  10. Where can I find detailed datasheets and application notes for MMBTA55LT1?

    • Detailed datasheets and application notes for MMBTA55LT1 can be found on semiconductor manufacturer websites or distributor platforms such as Digi-Key, Mouser, or Newark.