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1SMA4742TR
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1SMA4742TR

Product Overview

Category

The 1SMA4742TR belongs to the category of surface mount silicon zener diodes.

Use

It is commonly used for voltage regulation and transient suppression in various electronic circuits.

Characteristics

  • Voltage regulation
  • Transient suppression
  • Surface mount design
  • High reliability

Package

The 1SMA4742TR is typically available in a small, surface-mount package.

Essence

This product is essential for stabilizing voltage and protecting electronic components from voltage spikes.

Packaging/Quantity

The 1SMA4742TR is usually packaged in reels or tape and reel, with quantities varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 13V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.5V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA4742TR typically has two pins, with the anode and cathode connections clearly marked.

Functional Features

  • Voltage regulation: The 1SMA4742TR provides stable voltage output under varying load conditions.
  • Transient suppression: It protects sensitive electronic components from voltage spikes and transients.

Advantages

  • Small form factor
  • High reliability
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to reverse voltage polarity

Working Principles

The 1SMA4742TR operates based on the principle of the zener effect, where it maintains a constant voltage drop across its terminals when operated within its specified current and power ratings.

Detailed Application Field Plans

The 1SMA4742TR is widely used in: - Power supply units - Voltage regulators - Surge protection circuits - Electronic equipment requiring voltage stabilization

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4742TR include: - 1N4742A - BZX85C13 - MMSZ5245B

In conclusion, the 1SMA4742TR is a crucial component in electronic circuits, providing voltage regulation and transient suppression. Its small form factor and high reliability make it suitable for various applications, although it has limitations in power dissipation and reverse voltage sensitivity. Understanding its specifications, pin configuration, functional features, and alternative models is essential for effective utilization in electronic designs.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1SMA4742TR en soluciones técnicas

  1. What is 1SMA4742TR used for?

    • 1SMA4742TR is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum working voltage of 1SMA4742TR?

    • The maximum working voltage of 1SMA4742TR is 36.8V.

  3. What is the peak pulse power of 1SMA4742TR?

    • The peak pulse power of 1SMA4742TR is 400W.

  4. What are the typical applications of 1SMA4742TR?

    • Typical applications of 1SMA4742TR include protection of electronic circuits in telecommunications, industrial equipment, and consumer electronics.

  5. What is the operating temperature range of 1SMA4742TR?

    • The operating temperature range of 1SMA4742TR is -55°C to +150°C.

  6. What is the package type of 1SMA4742TR?

    • 1SMA4742TR comes in a DO-214AC (SMA) package.

  7. What is the clamping voltage of 1SMA4742TR?

    • The clamping voltage of 1SMA4742TR is 58.9V at 10A.

  8. Is 1SMA4742TR RoHS compliant?

    • Yes, 1SMA4742TR is RoHS compliant.

  9. What are the key features of 1SMA4742TR?

    • Key features of 1SMA4742TR include low clamping voltage, fast response time, and high surge capability.

  10. Can 1SMA4742TR be used for ESD protection?

    • Yes, 1SMA4742TR can be used for ESD (electrostatic discharge) protection in various electronic applications.