SM4T28AY Product Overview

Introduction

SM4T28AY is a transient voltage suppressor diode that belongs to the category of electronic components used for surge protection. This diode is designed to protect sensitive electronic devices and circuits from voltage spikes and transients.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Surge Protection for Electronic Devices and Circuits
• Characteristics: Fast response time, Low clamping voltage, High surge current capability
• Package: SMA (DO-214AC)
• Essence: Protecting against voltage spikes and transients
• Packaging/Quantity: Available in tape and reel packaging, with quantities varying based on supplier and order size.

Specifications

• Peak Pulse Power: 400W
• Breakdown Voltage Range: 24.4V to 26.9V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SM4T28AY diode has two pins, anode, and cathode, which are essential for its proper installation and functionality.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level.
• Fast Response Time: Rapid reaction to voltage spikes, providing quick protection to connected circuits.
• Low Clamping Voltage: Limits the voltage across the protected circuit to minimize potential damage.

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive electronics
• Fast response time
• Low clamping voltage

Disadvantages

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

Working Principles

When a voltage spike or transient occurs, the SM4T28AY diode conducts current to divert the excess energy away from the protected circuit, thus limiting the voltage across it.

Detailed Application Field Plans

• Telecommunications: Protecting communication equipment from lightning-induced surges.
• Automotive Electronics: Safeguarding vehicle electronics from voltage transients.
• Industrial Control Systems: Ensuring the reliability of control circuitry in industrial environments.

Detailed and Complete Alternative Models

• SM4T24A: Similar specifications with a slightly lower breakdown voltage range.
• SM4T30A: Higher breakdown voltage range for applications requiring greater protection.

In conclusion, the SM4T28AY transient voltage suppressor diode offers effective surge protection for various electronic applications, with its fast response time and low clamping voltage making it a reliable choice for safeguarding sensitive circuits.

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