ROV10H821K-S

Introduction

The ROV10H821K-S is a versatile electronic component that belongs to the category of varistors. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Varistor
• Use: The ROV10H821K-S is used as a voltage-dependent resistor to protect circuits against transient overvoltage conditions.
• Characteristics: It exhibits non-linear electrical behavior, with resistance decreasing as voltage increases.
• Package: The varistor is typically housed in a disc-shaped or square package made of fire-retardant material.
• Essence: Its essence lies in providing surge protection by diverting excessive current away from sensitive components.
• Packaging/Quantity: The varistor is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Rating: 820V
• Maximum Allowable Voltage: 510V
• Energy (2ms): 10J
• Peak Current (8/20μs): 2500A
• Operating Temperature Range: -40°C to +85°C
• Lead Material: Tin-plated copper

Detailed Pin Configuration

The ROV10H821K-S typically features two axial leads for connection to the circuit. The lead configuration may vary based on the manufacturer's specifications.

Functional Features

• Surge Protection: Effectively clamps transient overvoltages to safeguard connected equipment.
• Fast Response Time: Rapidly responds to voltage spikes to limit potential damage.
• Reliability: Exhibits stable performance over a wide range of operating conditions.

Advantages and Disadvantages

Advantages

• Effective surge protection
• Fast response time
• Wide operating temperature range

Disadvantages

• Non-linear behavior may introduce complexities in circuit design
• Limited energy absorption capacity compared to some other surge protection devices

Working Principles

The varistor operates based on the principle of voltage-dependent resistance. When subjected to overvoltage conditions, it conducts current to limit the voltage across the protected circuit.

Detailed Application Field Plans

The ROV10H821K-S finds extensive use in various applications, including: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• ROV10H391K-S: Lower voltage rating
• ROV10H102K-S: Higher voltage rating
• ROV10H201K-S: Similar voltage rating with different energy absorption capacity

In conclusion, the ROV10H821K-S varistor serves as a crucial component in protecting electronic circuits from transient overvoltage events. Its specifications, functional features, and application versatility make it a valuable asset in diverse electronic systems.

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