ERZ-V20D471 Product Overview

Introduction

The ERZ-V20D471 belongs to the category of varistors, which are electronic components used to protect circuits from overvoltage conditions. This entry provides a comprehensive overview of the ERZ-V20D471, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Varistors
• Use: Overvoltage protection in electronic circuits
• Characteristics: High energy absorption capacity, fast response time
• Package: Disc shape
• Essence: Zinc oxide-based material
• Packaging/Quantity: Bulk packaging, quantity varies based on supplier

Specifications

• Voltage Rating: 470V
• Nominal Diameter: 20mm
• Maximum Allowable Voltage: 615V
• Peak Current (8/20μs): 4500A
• Energy (10/1000μs): 360J
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ERZ-V20D471 varistor has two terminals for connection, typically labeled as "Anode" and "Cathode."

Functional Features

• Overvoltage Protection: Absorbs excessive voltage spikes to protect connected circuits.
• Fast Response Time: Quickly clamps voltage surges to prevent damage to sensitive components.

Advantages and Disadvantages

Advantages

• High energy absorption capacity
• Fast response time
• Wide operating temperature range

Disadvantages

• Limited lifespan under repeated high-energy events
• Non-linear voltage-current characteristics

Working Principles

The ERZ-V20D471 varistor operates based on the principle of nonlinear resistance. When subjected to overvoltage conditions, the varistor's resistance decreases sharply, allowing it to conduct current and divert excess energy away from the protected circuit.

Detailed Application Field Plans

The ERZ-V20D471 varistor finds extensive use in various electronic systems requiring overvoltage protection, including: - Power supply units - Industrial equipment - Telecommunication devices - Consumer electronics

Detailed and Complete Alternative Models

• ERZ-V14D471: Similar varistor with a smaller diameter
• ERZ-V07D471: Compact varistor suitable for space-constrained applications
• ERZ-V33D471: Higher voltage rating variant for more demanding environments

In conclusion, the ERZ-V20D471 varistor offers reliable overvoltage protection with its high energy absorption capacity and fast response time. While it has certain limitations, its wide application field and availability of alternative models make it a versatile choice for circuit protection needs.

Word Count: 410