Taiwan Semiconductor Corporation
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1SMA5938HR3G
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1SMA5938HR3G

Product Overview

Category

The 1SMA5938HR3G belongs to the category of surface mount silicon zener diodes.

Use

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

Characteristics

  • Low leakage current
  • High reliability
  • Fast response time
  • Wide voltage range

Package

The 1SMA5938HR3G is available in a SMA package, which is designed for high power dissipation.

Essence

This product serves as a crucial component in protecting sensitive electronic devices from voltage spikes and surges.

Packaging/Quantity

The 1SMA5938HR3G is typically packaged in reels with a quantity varying based on customer requirements.

Specifications

  • Zener Voltage: 11V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.5V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA5938HR3G has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage regulation
  • Transient suppression
  • Overvoltage protection

Advantages and Disadvantages

Advantages

  • High reliability
  • Fast response time
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Higher cost compared to standard diodes

Working Principles

The 1SMA5938HR3G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

The 1SMA5938HR3G finds applications in various fields including: - Power supply units - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMA5938HR3G include: - 1N4749A - BZX85C11 - P6KE11CA

In conclusion, the 1SMA5938HR3G is a vital component in electronic circuits, providing voltage regulation and transient suppression. Its high reliability and fast response time make it suitable for a wide range of applications, despite its limitations in power dissipation and cost compared to standard diodes. With its detailed specifications, pin configuration, functional features, application field plans, and alternative models, the 1SMA5938HR3G offers engineers and designers a valuable solution for voltage protection needs.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem 1SMA5938HR3G w rozwiązaniach technicznych

  1. What is 1SMA5938HR3G and what is its application in technical solutions?

    • 1SMA5938HR3G is a high-reliability, low-voltage, surface-mount transient voltage suppressor diode. It is commonly used to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum voltage and current rating for 1SMA5938HR3G?

    • The maximum working voltage for 1SMA5938HR3G is 5.8V, and the peak pulse current is 40A.

  3. How does 1SMA5938HR3G protect electronic circuits?

    • 1SMA5938HR3G clamps the voltage of the protected circuit to a safe level by diverting excess current away from sensitive components during transient events.

  4. What are the typical applications for 1SMA5938HR3G in technical solutions?

    • Typical applications include protection of data lines, portable electronics, and communication ports from electrostatic discharge (ESD) and electrical fast transients (EFT).

  5. What is the response time of 1SMA5938HR3G during a transient event?

    • The response time of 1SMA5938HR3G is very fast, typically in the nanosecond range, providing quick protection to the connected circuitry.

  6. Can 1SMA5938HR3G be used in automotive applications?

    • Yes, 1SMA5938HR3G is suitable for use in automotive electronics to protect against voltage transients and ESD events.

  7. What is the operating temperature range for 1SMA5938HR3G?

    • The operating temperature range is typically from -55°C to +150°C, making it suitable for a wide range of environments.

  8. Does 1SMA5938HR3G require any external components for proper operation?

    • In most cases, 1SMA5938HR3G can be used standalone, but additional filtering or decoupling capacitors may be recommended for specific applications.

  9. Is 1SMA5938HR3G RoHS compliant?

    • Yes, 1SMA5938HR3G is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  10. What are the package options available for 1SMA5938HR3G?

    • 1SMA5938HR3G is available in a variety of surface-mount packages, including SMA, SMB, and SMC, offering flexibility for different PCB layouts and space constraints.