Vishay Semiconductor Diodes Division
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SM8S28HE3/2D
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SM8S28HE3/2D

Product Overview

Category: Electronic Component
Use: Surge Protection
Characteristics: High surge capability, low clamping voltage
Package: SO-8
Essence: Protects electronic circuits from voltage surges
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Peak Pulse Power: 800 Watts
  • Clamping Voltage: 34.4V
  • Operating Temperature Range: -55°C to +150°C
  • Breakdown Voltage: 28V
  • Reverse Standoff Voltage: 28V

Detailed Pin Configuration

  1. Pin 1: Cathode
  2. Pin 2: Anode
  3. Pin 3: Not connected
  4. Pin 4: Cathode
  5. Pin 5: Anode
  6. Pin 6: Not connected
  7. Pin 7: Cathode
  8. Pin 8: Anode

Functional Features

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

Advantages and Disadvantages

Advantages: - Provides robust surge protection - Fast reaction to transient overvoltage events - Compact package size

Disadvantages: - Limited to specific voltage ranges - Requires careful consideration of application requirements

Working Principles

The SM8S28HE3/2D operates by diverting excess voltage away from sensitive electronic components during transient overvoltage events. When the voltage exceeds the clamping voltage, the device conducts heavily to limit the voltage across the circuit.

Detailed Application Field Plans

  1. Telecommunication Equipment: Protects sensitive communication circuits from lightning-induced surges.
  2. Industrial Control Systems: Safeguards control systems from power surges and transients.
  3. Automotive Electronics: Shields vehicle electronics from voltage spikes due to load dump or jump-start events.

Detailed and Complete Alternative Models

  1. SM8S33HE3/2D: Similar surge protection characteristics with a higher clamping voltage of 38.9V.
  2. SM8S24AHE3/2D: Lower clamping voltage of 26.0V for more sensitive applications.

This comprehensive entry provides detailed information about the SM8S28HE3/2D surge protection component, including its specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.

تکنیکی حل میں SM8S28HE3/2D کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

  1. What is the SM8S28HE3/2D?

    • The SM8S28HE3/2D is a TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of the SM8S28HE3/2D?

    • The maximum peak pulse power of the SM8S28HE3/2D is 800 watts for an 10/1000μs waveform.

  3. What is the breakdown voltage of the SM8S28HE3/2D?

    • The breakdown voltage of the SM8S28HE3/2D is 28V.

  4. What are the typical applications of the SM8S28HE3/2D?

    • The SM8S28HE3/2D is commonly used in surge protection for telecommunications equipment, Ethernet networks, industrial controls, and other sensitive electronic devices.

  5. What is the operating temperature range of the SM8S28HE3/2D?

    • The operating temperature range of the SM8S28HE3/2D is -55°C to +150°C.

  6. What is the package type of the SM8S28HE3/2D?

    • The SM8S28HE3/2D is available in a DO-218AB package.

  7. What is the clamping voltage of the SM8S28HE3/2D?

    • The clamping voltage of the SM8S28HE3/2D is 45.7V at 14A.

  8. Is the SM8S28HE3/2D RoHS compliant?

    • Yes, the SM8S28HE3/2D is RoHS compliant.

  9. What are the key features of the SM8S28HE3/2D?

    • The key features of the SM8S28HE3/2D include low clamping voltage, fast response time, and high surge capability.

  10. Can the SM8S28HE3/2D be used for outdoor applications?

    • Yes, the SM8S28HE3/2D can be used for outdoor applications as it provides robust protection against lightning-induced transients.