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1SMA18AT3
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1SMA18AT3

Product Overview

Category

The 1SMA18AT3 belongs to the category of semiconductor devices.

Use

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

Characteristics

  • Low leakage current
  • Fast response time
  • High surge capability

Package

The 1SMA18AT3 is available in a SMA package.

Essence

The essence of 1SMA18AT3 lies in its ability to protect sensitive electronic components from voltage transients.

Packaging/Quantity

It is typically packaged in reels and available in quantities suitable for production runs.

Specifications

  • Peak Pulse Power: 400W
  • Breakdown Voltage: 18V
  • Maximum Clamping Voltage: 29.2V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The 1SMA18AT3 has two pins, with the anode connected to the positive side and the cathode connected to the negative side.

Functional Features

  • Transient voltage suppression
  • Overvoltage protection
  • ESD protection

Advantages and Disadvantages

Advantages

  • Fast response time protects sensitive components
  • Low leakage current minimizes power loss
  • High surge capability ensures robust protection

Disadvantages

  • Limited breakdown voltage compared to higher-rated devices
  • Sensitive to reverse voltage polarity

Working Principles

When a transient voltage spike occurs, the 1SMA18AT3 conducts current to divert the excess energy away from the protected circuit, thereby limiting the voltage across the circuit.

Detailed Application Field Plans

The 1SMA18AT3 is commonly used in: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to 1SMA18AT3 include: - 1SMA16AT3 - 1SMA20AT3 - 1SMA24AT3

In conclusion, the 1SMA18AT3 is a vital component in electronic circuits, providing essential transient voltage suppression and overvoltage protection. Its characteristics, specifications, and application field plans make it a crucial element in various electronic systems.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 1SMA18AT3 i tekniske løsninger

  1. What is 1SMA18AT3?

    • 1SMA18AT3 is a surface mount, high-power silicon zener diode designed for voltage regulation and transient overvoltage protection in various electronic circuits.

  2. What is the maximum power dissipation of 1SMA18AT3?

    • The maximum power dissipation of 1SMA18AT3 is 400mW.

  3. What is the breakdown voltage of 1SMA18AT3?

    • The breakdown voltage of 1SMA18AT3 is 18V.

  4. What are the typical applications of 1SMA18AT3?

    • Typical applications of 1SMA18AT3 include voltage clamping, surge suppression, and transient voltage protection in electronic equipment and circuits.

  5. What is the operating temperature range of 1SMA18AT3?

    • The operating temperature range of 1SMA18AT3 is -55°C to +150°C.

  6. What is the forward voltage drop of 1SMA18AT3 at a specified current?

    • The forward voltage drop of 1SMA18AT3 at a specified current is typically 1.5V.

  7. Is 1SMA18AT3 RoHS compliant?

    • Yes, 1SMA18AT3 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What is the package type of 1SMA18AT3?

    • 1SMA18AT3 is available in a SMA (DO-214AC) package.

  9. Can 1SMA18AT3 be used for ESD protection?

    • Yes, 1SMA18AT3 can be used for electrostatic discharge (ESD) protection in sensitive electronic components and circuits.

  10. What are the key electrical characteristics of 1SMA18AT3?

    • The key electrical characteristics of 1SMA18AT3 include its zener voltage, reverse leakage current, and dynamic resistance, which are important for its application in technical solutions.