Vishay Semiconductor Diodes Division
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SMF12A-HE3-08
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SMF12A-HE3-08

Product Overview

Category: Electronic Component
Use: Voltage Suppressor Diode
Characteristics: High efficiency, low leakage current
Package: SOD-123FL
Essence: Protects sensitive electronic components from voltage spikes
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 1500 W
  • Breakdown Voltage: 12 V
  • Clamping Voltage: 19.9 V
  • Leakage Current: 1 µA
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMF12A-HE3-08 has two pins, with the anode connected to pin 1 and the cathode connected to pin 2.

Functional Features

  • Fast response time
  • Low clamping voltage
  • High surge capability
  • RoHS compliant

Advantages and Disadvantages

Advantages: - Provides reliable overvoltage protection - Low leakage current for energy efficiency - Compact SOD-123FL package for space-saving designs

Disadvantages: - Limited breakdown voltage compared to higher-rated diodes - May require additional circuitry for higher voltage protection

Working Principles

The SMF12A-HE3-08 operates by diverting excess voltage away from sensitive components when a transient voltage spike occurs. It rapidly clamps the voltage to a safe level, protecting the downstream circuitry.

Detailed Application Field Plans

This diode is commonly used in: - Consumer electronics - Automotive electronics - Industrial control systems - Telecommunication equipment

Detailed and Complete Alternative Models

  • SMF5.0A: 5 V breakdown voltage
  • SMF15A: 15 V breakdown voltage
  • SMF24A: 24 V breakdown voltage
  • SMF36A: 36 V breakdown voltage

Note: The above alternative models are part of the same series and offer varying breakdown voltages to suit different application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMF12A-HE3-08 v technických řešeních

  1. What is the SMF12A-HE3-08?

    • The SMF12A-HE3-08 is a surface mount Schottky barrier diode designed for high efficiency rectification in various technical solutions.

  2. What are the key features of the SMF12A-HE3-08?

    • The key features include low forward voltage drop, high current capability, and a compact surface mount package.

  3. What technical solutions can the SMF12A-HE3-08 be used in?

    • It can be used in applications such as power supplies, LED lighting, battery charging, and reverse polarity protection circuits.

  4. What is the maximum forward current rating of the SMF12A-HE3-08?

    • The maximum forward current rating is typically 1A.

  5. What is the typical forward voltage drop of the SMF12A-HE3-08?

    • The typical forward voltage drop is around 0.36V at 1A.

  6. What is the operating temperature range of the SMF12A-HE3-08?

    • The operating temperature range is typically -65°C to +125°C.

  7. Is the SMF12A-HE3-08 RoHS compliant?

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

  8. Can the SMF12A-HE3-08 be used in automotive applications?

    • Yes, it is suitable for use in automotive electronics due to its robust construction and wide temperature range.

  9. Does the SMF12A-HE3-08 require a heat sink for operation?

    • In most applications, a heat sink is not required due to its efficient design and low forward voltage drop.

  10. Where can I find detailed application notes for using the SMF12A-HE3-08 in technical solutions?

    • Detailed application notes can be found in the product datasheet or by contacting the manufacturer's technical support team.