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SMF4L28A
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SMF4L28A Diode: Encyclopedia Entry

Introduction

The SMF4L28A diode is a crucial component in electronic circuits, providing protection against voltage spikes and surges. This encyclopedia entry provides comprehensive information about the SMF4L28A diode, including its product details, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Product Overview

Category

The SMF4L28A diode belongs to the category of surface mount transient voltage suppressor (TVS) diodes.

Use

It is primarily used for surge protection in electronic circuits, safeguarding sensitive components from voltage transients.

Characteristics

  • Low clamping voltage
  • Fast response time
  • High surge current capability

Package

The SMF4L28A diode is typically available in a surface mount package, such as SMB or SMC.

Essence

Its essence lies in providing robust transient voltage suppression to prevent damage to electronic devices.

Packaging/Quantity

These diodes are commonly packaged in reels or tape and reel, with quantities varying based on manufacturer specifications.

Specifications

  • Peak Pulse Power: 400W
  • Standoff Voltage: 28V
  • Breakdown Voltage Range: 31.1V to 34.4V
  • Operating Temperature Range: -55°C to 150°C
  • Package Type: SMB/DO-214AA

Detailed Pin Configuration

The SMF4L28A diode typically consists of two pins, anode, and cathode, which are clearly marked on the device's packaging and datasheet.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • Low Clamping Voltage: Provides efficient protection without compromising the circuit's normal operation.

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Compact size
  • Wide operating temperature range

Disadvantages

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

Working Principles

When a voltage transient occurs, the SMF4L28A diode conducts and clamps the voltage to a safe level, diverting excess energy away from the protected circuit.

Detailed Application Field Plans

The SMF4L28A diode finds extensive use in various applications, including: - Consumer electronics - Telecommunications equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • Alternative Model 1: SMF5.0A
    • Standoff Voltage: 5V
    • Package Type: SMB
  • Alternative Model 2: SMF15A
    • Standoff Voltage: 15V
    • Package Type: SMC
  • Alternative Model 3: SMF30A
    • Standoff Voltage: 30V
    • Package Type: SMB

In conclusion, the SMF4L28A diode serves as a critical component in protecting electronic circuits from voltage transients, offering efficient surge protection and fast response times. Its compact size and wide operating temperature range make it suitable for diverse applications across various industries.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMF4L28A v technických řešeních

  1. What is SMF4L28A?

    • SMF4L28A is a transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum clamping voltage of SMF4L28A?

    • The maximum clamping voltage of SMF4L28A is 45.4V at 10A.

  3. What is the peak pulse power of SMF4L28A?

    • The peak pulse power of SMF4L28A is 400W for an 8/20µs waveform.

  4. What are the typical applications of SMF4L28A?

    • SMF4L28A is commonly used in applications such as telecommunications equipment, industrial control systems, and automotive electronics.

  5. What is the operating temperature range of SMF4L28A?

    • The operating temperature range of SMF4L28A is -55°C to +150°C.

  6. What is the reverse stand-off voltage of SMF4L28A?

    • The reverse stand-off voltage of SMF4L28A is 28V.

  7. Is SMF4L28A RoHS compliant?

    • Yes, SMF4L28A is RoHS compliant, making it suitable for use in environmentally sensitive applications.

  8. What package type does SMF4L28A come in?

    • SMF4L28A is available in a SOD-123FL package.

  9. Does SMF4L28A provide ESD protection?

    • Yes, SMF4L28A provides ESD protection in addition to transient voltage suppression.

  10. Can SMF4L28A be used in high-speed data line protection?

    • Yes, SMF4L28A is suitable for use in high-speed data line protection due to its fast response time and low clamping voltage.