1.5KE20HE3/73 - Product Encyclopedia Entry

Introduction

The 1.5KE20HE3/73 is a transient voltage suppressor (TVS) diode belonging to the semiconductor product category. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Semiconductor, Transient Voltage Suppressor Diode
• Use: Protecting sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.
• Characteristics: High surge capability, fast response time, low clamping voltage.
• Package: DO-201AD (DO-27), Axial
• Essence: TVS diodes provide overvoltage protection by diverting excessive current away from sensitive components.
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier.

Specifications

• Voltage - Reverse Standoff (Typ): 17.1V
• Voltage - Breakdown (Min): 18.9V
• Voltage - Clamping (Max) @ Ipp: 29.2V
• Current - Peak Pulse (10/1000µs): 38.6A
• Power - Peak Pulse: 1500W
• Operating Temperature: -55°C to 175°C

Detailed Pin Configuration

The 1.5KE20HE3/73 TVS diode has two axial leads for connection in a circuit. The anode lead is typically longer than the cathode lead, allowing for proper orientation during installation.

Functional Features

• Transient Voltage Suppression: Rapidly diverts excess voltage away from sensitive components.
• Fast Response Time: Reacts quickly to voltage transients, minimizing potential damage.
• High Surge Capability: Can withstand large surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients.
• Fast response time ensures minimal impact on the protected circuit.
• High surge capability provides robust protection.

Disadvantages

• Clamping voltage may still allow some voltage transients to reach the protected circuit.
• Requires proper installation and circuit design for optimal performance.

Working Principles

When a voltage transient occurs, the TVS diode conducts current, diverting the excess energy away from the sensitive components. This action limits the voltage across the protected circuit, preventing damage.

Detailed Application Field Plans

The 1.5KE20HE3/73 is commonly used in various applications including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• 1.5KE18CA - Similar TVS diode with lower breakdown voltage
• 1.5KE22A - Similar TVS diode with higher breakdown voltage
• P6KE20A - Alternative TVS diode with different package type

In conclusion, the 1.5KE20HE3/73 TVS diode offers effective transient voltage suppression with fast response times and high surge capability, making it suitable for diverse electronic applications.

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