SM8S28-E3/2D

Introduction

The SM8S28-E3/2D is a robust 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 SM8S28-E3/2D, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The SM8S28-E3/2D belongs to the category of transient voltage suppressor diodes, which are widely used in various electronic applications to protect against voltage surges and spikes.

Basic Information Overview

• Use: The SM8S28-E3/2D is used to protect sensitive electronic circuits from voltage transients.
• Characteristics: It offers low clamping voltage, high surge capability, and fast response time.
• Package: The diode is available in a DO-218AB package.
• Essence: Its essence lies in providing reliable overvoltage protection for electronic devices.
• Packaging/Quantity: The diode is typically packaged in reels or tubes, with varying quantities based on customer requirements.

Specifications

• Peak Pulse Power: 800 Watts
• Breakdown Voltage: 28V
• Operating Voltage: 23.8V
• Clamping Voltage: 38.9V
• Peak Pulse Current: 34.8A
• Reverse Standoff Voltage: 28V
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SM8S28-E3/2D features a standard DO-218AB package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively suppresses transient voltages to protect downstream circuitry.
• Fast Response Time: Rapidly responds to voltage transients to prevent damage to connected devices.
• High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

• High surge capability
• Low clamping voltage
• Fast response time
• Reliable overvoltage protection

Disadvantages

• Limited to specific voltage ranges
• Requires careful consideration of reverse standoff voltage

Working Principles

The SM8S28-E3/2D operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action effectively clamps the voltage to a safe level, protecting the downstream electronics.

Detailed Application Field Plans

The SM8S28-E3/2D finds extensive use in various applications, including: - Telecommunications: Protects communication equipment from lightning-induced surges. - Industrial Control Systems: Safeguards control systems from voltage transients. - Automotive Electronics: Provides overvoltage protection for automotive electronics. - Power Supplies: Protects power supply units from voltage spikes.

Detailed and Complete Alternative Models

• SM8S28A-E3/2D: Similar specifications with slight variations in performance characteristics.
• SM8S28CA-E3/2D: Offers enhanced clamping voltage for specific applications.
• SM8S28HE3/2D: Higher surge capability with similar operating parameters.

In conclusion, the SM8S28-E3/2D transient voltage suppressor diode offers reliable overvoltage protection with its robust design and fast response time. Its application spans across diverse industries, making it a crucial component in safeguarding electronic equipment from transient voltage events.

Word Count: 536