SM15T18CA-E3/9AT

Introduction

The SM15T18CA-E3/9AT is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. 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.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients induced by lightning, inductive load switching, and electrostatic discharge
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: SMA (DO-214AC)
• Essence: Silicon transient voltage suppressor diode
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Part Number: SM15T18CA-E3/9AT
• Standoff Voltage: 15V
• Breakdown Voltage: 18.5V
• Peak Pulse Power: 1500W
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SM15T18CA-E3/9AT is a unidirectional transient voltage suppressor diode with two pins. The cathode is denoted by a bar near one end of the diode.

Functional Features

• Transient Voltage Suppression: Provides protection against voltage transients by diverting excess current away from sensitive components.
• Fast Response Time: Reacts quickly to transient events, minimizing the risk of damage to connected devices.
• Low Clamping Voltage: Limits the voltage across the protected circuit during transient events, reducing the risk of damage.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• RoHS compliant

Disadvantages

• Limited to unidirectional transient voltage suppression
• Requires proper installation for optimal performance

Working Principles

When a transient voltage spike occurs, the SM15T18CA-E3/9AT conducts excess current to ground, limiting the voltage across the protected circuit. This action helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The SM15T18CA-E3/9AT is commonly used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

• SM15T Series: Includes various standoff and breakdown voltage options within the same package type.
• P6SMB Series: Offers similar transient voltage suppression capabilities in a different package format.

In conclusion, the SM15T18CA-E3/9AT transient voltage suppressor diode is a crucial component in protecting electronic circuits from voltage transients. Its fast response time, high surge capability, and RoHS compliance make it suitable for a wide range of applications.

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