1.5KE43HE3/73 - Product Encyclopedia Entry

Introduction

The 1.5KE43HE3/73 is a high-performance TVS (transient voltage suppressor) diode designed to protect sensitive electronics from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides a comprehensive overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Electronic Components
• Use: Voltage Transient Suppression
• Characteristics: High Surge Capability, Fast Response Time
• Package: DO-201AE (DO-27)
• Essence: Protection of Sensitive Electronics
• Packaging/Quantity: Tape & Reel, 500 units per reel

Specifications

• Peak Pulse Power: 1500W
• Standoff Voltage: 36.8V
• Breakdown Voltage: 40.9V
• Maximum Clamping Voltage: 58.1V
• Operating Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 1.5KE43HE3/73 TVS diode has a standard DO-201AE package with two leads. The anode is connected to the positive terminal, and the cathode is connected to the negative terminal.

Functional Features

• Transient Voltage Suppression: Rapidly clamps transient voltages to safe levels.
• Low Leakage Current: Ensures minimal power dissipation during normal operation.
• Fast Response Time: Provides quick reaction to transient events, protecting downstream components.

Advantages

• High surge capability for robust protection.
• Fast response time guards against transient events.
• Low clamping voltage protects sensitive electronics.

Disadvantages

• Limited to specific voltage ranges.
• Requires proper installation for effective protection.

Working Principles

When a transient voltage event occurs, the 1.5KE43HE3/73 TVS diode rapidly conducts current, diverting the excess energy away from the protected circuit. This action limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The 1.5KE43HE3/73 is widely used in various applications, including: - Power Supplies - Communication Equipment - Industrial Control Systems - Automotive Electronics - Consumer Electronics

Detailed and Complete Alternative Models

• 1.5KE36CA: Similar specifications with a lower breakdown voltage.
• 1.5KE47A: Higher standoff and breakdown voltages for extended protection.

In conclusion, the 1.5KE43HE3/73 TVS diode offers robust transient voltage suppression capabilities, making it an essential component in safeguarding sensitive electronics from damaging voltage spikes and surges.

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