Vishay Semiconductor Diodes Division
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SM5S18-E3/2D
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SM5S18-E3/2D

Introduction

The SM5S18-E3/2D is a high-performance TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product Overview

  • Category: Electronic Components
  • Use: Voltage Transient Suppression
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: DO-218AB
  • Essence: Protection of sensitive electronic equipment
  • Packaging/Quantity: Tape & Reel, 500 units per reel

Specifications

  • Standoff Voltage: 18V
  • Breakdown Voltage: 20V
  • Peak Pulse Power: 5kW
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SM5S18-E3/2D features a DO-218AB package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage transients and surges.
  • Fast Response Time: Quickly responds to transient events, safeguarding connected equipment.
  • High Surge Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • High surge capability

Disadvantages

  • Limited to specific voltage range
  • Requires proper installation for optimal performance

Working Principles

The SM5S18-E3/2D operates by diverting excessive transient current away from sensitive electronic circuits, thereby limiting the voltage across the protected device during transient events. This is achieved through the rapid conduction of the TVS diode when the voltage exceeds the breakdown voltage, effectively shunting the excess energy to ground.

Detailed Application Field Plans

The SM5S18-E3/2D is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

  • SM5S15A-E3/2D: Standoff Voltage: 15V, Breakdown Voltage: 16.7V, Peak Pulse Power: 5kW
  • SM5S24A-E3/2D: Standoff Voltage: 24V, Breakdown Voltage: 26.7V, Peak Pulse Power: 5kW
  • SM5S30A-E3/2D: Standoff Voltage: 30V, Breakdown Voltage: 33.3V, Peak Pulse Power: 5kW

In conclusion, the SM5S18-E3/2D is a reliable TVS diode offering robust transient voltage suppression capabilities, making it an essential component in safeguarding sensitive electronic equipment from voltage transients and surges.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SM5S18-E3/2D v technických řešeních

  1. What is the SM5S18-E3/2D?

    • The SM5S18-E3/2D is a TVS (transient voltage suppressor) diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What are the key features of the SM5S18-E3/2D?

    • The key features include a low clamping voltage, high surge capability, fast response time, and compatibility with various electronic circuits.

  3. How does the SM5S18-E3/2D protect electronic circuits?

    • It provides a low-impedance path to divert excess current away from sensitive components, preventing damage due to voltage surges or transients.

  4. In what applications can the SM5S18-E3/2D be used?

    • It is commonly used in power supplies, communication equipment, automotive electronics, and industrial control systems to protect against voltage fluctuations.

  5. What is the maximum voltage and current rating of the SM5S18-E3/2D?

    • The maximum working voltage is 15.3V, and the peak pulse current is 50A.

  6. How does the SM5S18-E3/2D compare to other TVS diodes in its class?

    • It offers a balance of performance, cost-effectiveness, and reliability, making it suitable for a wide range of applications.

  7. Can the SM5S18-E3/2D be used in high-frequency circuits?

    • Yes, it has a fast response time and low capacitance, making it suitable for high-frequency applications.

  8. What are the recommended mounting and handling procedures for the SM5S18-E3/2D?

    • It should be mounted close to the protected circuit, and proper ESD precautions should be followed during handling to avoid damage.

  9. Does the SM5S18-E3/2D require any external components for proper operation?

    • It can be used standalone but may benefit from additional filtering and protection components depending on the specific application requirements.

  10. Where can I find detailed specifications and application notes for the SM5S18-E3/2D?

    • Detailed specifications and application notes can be found in the product datasheet provided by the manufacturer or distributor.