SMCJ18A-HRA

Introduction

The SMCJ18A-HRA is a high-reliability 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 basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients induced by lightning and other transient voltage events
• Characteristics: High reliability, low clamping voltage, fast response time
• Package: SMA (DO-214AC)
• Essence: Provides robust protection for sensitive electronic equipment
• Packaging/Quantity: Tape & Reel, 1500 units per reel

Specifications

• Peak Pulse Power: 1500 W
• Breakdown Voltage: 18 V
• Clamping Voltage: 29.2 V
• Operating Temperature Range: -55°C to +175°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMCJ18A-HRA follows the standard SMA (DO-214AC) package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

• High Reliability: Designed for robust and reliable performance in transient voltage suppression.
• Low Clamping Voltage: Provides effective protection by limiting the peak voltage during transient events.
• Fast Response Time: Reacts quickly to transient voltage events, minimizing the risk of damage to connected equipment.

Advantages and Disadvantages

Advantages: - High reliability - Low clamping voltage - Fast response time - Robust protection for sensitive electronic equipment

Disadvantages: - Limited to specific voltage ratings - Requires proper installation and handling to ensure effectiveness

Working Principles

The SMCJ18A-HRA operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts current, diverting excess energy away from the protected circuit. This action limits the voltage across the protected load, safeguarding it from potential damage.

Detailed Application Field Plans

The SMCJ18A-HRA is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies - LED lighting systems

Detailed and Complete Alternative Models

• SMCJ5.0A-HRA: Breakdown Voltage: 5.0 V, Peak Pulse Power: 1500 W
• SMCJ10A-HRA: Breakdown Voltage: 10 V, Peak Pulse Power: 1500 W
• SMCJ24A-HRA: Breakdown Voltage: 24 V, Peak Pulse Power: 1500 W
• SMCJ36A-HRA: Breakdown Voltage: 36 V, Peak Pulse Power: 1500 W

In summary, the SMCJ18A-HRA transient voltage suppressor diode offers high reliability, low clamping voltage, and fast response time, making it an essential component for protecting sensitive electronic equipment from transient voltage events.

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