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SMF4L18A

SMF4L18A - Product Overview and Specifications

Introduction

The SMF4L18A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for protecting sensitive electronic devices from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides an overview of the SMF4L18A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protecting electronic devices from voltage transients
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: SOD-123FL
  • Essence: Provides robust protection against transient voltage events
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

  • Peak Pulse Power: 400W
  • Standoff Voltage: 18V
  • Breakdown Voltage: 20V
  • Maximum Clamping Voltage: 29.2V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMF4L18A diode has a standard SOD-123FL package with three pins: anode, cathode, and ground.

Functional Features

  • Fast response time to transient voltage events
  • Low clamping voltage to protect downstream components
  • High surge current capability for robust protection

Advantages and Disadvantages

Advantages

  • Effective protection against transient voltage events
  • Compact package size for easy integration into circuit designs
  • Wide operating temperature range for versatile applications

Disadvantages

  • Limited maximum clamping voltage may not be suitable for some high-voltage applications
  • Requires careful consideration of placement and layout for optimal performance

Working Principles

The SMF4L18A operates by diverting excessive transient current away from sensitive electronic components when a transient voltage event occurs. It achieves this by rapidly switching into a low-impedance state, effectively shunting the excess energy to ground and limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMF4L18A is widely used in various electronic systems, including: - Consumer electronics - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

  • SMF5.0A: Standoff Voltage 5V, Peak Pulse Power 200W
  • SMF6.8A: Standoff Voltage 6.8V, Peak Pulse Power 200W
  • SMF10A: Standoff Voltage 10V, Peak Pulse Power 400W
  • SMF15A: Standoff Voltage 15V, Peak Pulse Power 400W

In conclusion, the SMF4L18A transient voltage suppressor diode offers effective protection against transient voltage events, making it an essential component in various electronic systems. Its compact size, fast response time, and high surge current capability make it a preferred choice for designers seeking reliable transient voltage protection.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMF4L18A v technických řešeních

  1. What is SMF4L18A?

    • SMF4L18A is a type of transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.
  2. What is the maximum peak pulse power of SMF4L18A?

    • The maximum peak pulse power of SMF4L18A is typically 400 watts.
  3. What is the breakdown voltage of SMF4L18A?

    • The breakdown voltage of SMF4L18A is around 18 volts.
  4. How does SMF4L18A protect electronic circuits?

    • SMF4L18A clamps the voltage across the circuit it is protecting, diverting excess current away from sensitive components and preventing damage due to voltage spikes.
  5. In what applications can SMF4L18A be used?

    • SMF4L18A is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems.
  6. What is the response time of SMF4L18A?

    • The response time of SMF4L18A is very fast, typically in the nanosecond range, providing quick protection against voltage transients.
  7. Can SMF4L18A be used for surge protection in data lines?

    • Yes, SMF4L18A can be used for surge protection in data lines, offering reliable protection for sensitive communication interfaces.
  8. What is the operating temperature range of SMF4L18A?

    • The operating temperature range of SMF4L18A is typically between -55°C to 150°C, making it suitable for a wide range of environments.
  9. Does SMF4L18A require any external components for proper operation?

    • No, SMF4L18A does not require any external components for its basic operation, simplifying its integration into technical solutions.
  10. Is SMF4L18A RoHS compliant?

    • Yes, SMF4L18A is RoHS compliant, ensuring that it meets environmental standards for hazardous substances.