ROV20H621K-S-2 Product Overview

Introduction

The ROV20H621K-S-2 is a versatile electronic component that belongs to the category of varistors. This entry will provide an in-depth 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: Varistors
• Use: The ROV20H621K-S-2 is used for voltage clamping and transient surge protection in various electronic circuits.
• Characteristics: It exhibits high energy absorption capability, fast response time, and low leakage current.
• Package: The varistor is typically housed in a cylindrical or disc-shaped package.
• Essence: It serves as a critical component in safeguarding electronic devices from voltage spikes and surges.
• Packaging/Quantity: The varistor is commonly available in tape and reel packaging with varying quantities per reel.

Specifications

• Model: ROV20H621K-S-2
• Maximum Allowable Voltage: 620V
• Nominal Varistor Voltage: 510V
• Peak Current (8/20μs): 8000A
• Energy (10/1000μs): 4.5J
• Operating Temperature Range: -40°C to +85°C
• Lead Material: Tin-plated copper

Detailed Pin Configuration

The ROV20H621K-S-2 varistor typically features two leads for connection to the circuit. The pin configuration may vary based on the specific package type and manufacturer.

Functional Features

• Voltage Clamping: Effectively limits the voltage across the circuit during transient events.
• Transient Surge Protection: Absorbs and dissipates energy from sudden voltage spikes, protecting downstream components.
• Fast Response Time: Reacts rapidly to transient events, minimizing the risk of damage to sensitive electronics.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Non-linear voltage-current characteristics
• Limited lifespan under repetitive stress

Working Principles

The ROV20H621K-S-2 operates based on the principle of non-linear voltage-dependent resistance. When subjected to a transient voltage surge, the varistor's resistance decreases sharply, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The ROV20H621K-S-2 finds extensive use in various applications, including: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

• ROV14H221K-S-2: Lower voltage rating variant suitable for less demanding applications.
• ROV25H681K-S-2: Higher energy absorption capacity for more robust surge protection.

In conclusion, the ROV20H621K-S-2 varistor is a crucial component in modern electronic systems, providing essential transient surge protection and voltage clamping capabilities. Its wide range of applications and availability of alternative models make it a versatile choice for engineers seeking reliable surge protection solutions.

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