ROV07H820K-S Product Overview

Introduction

The ROV07H820K-S is a versatile electronic component that belongs to the category of varistors. This entry provides 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 ROV07H820K-S is used for voltage clamping and transient surge protection in various electronic circuits.
• Characteristics: It exhibits nonlinear voltage-current characteristics, providing protection against overvoltage conditions.
• Package: The varistor is typically housed in a cylindrical or disc-shaped package, with lead wires for connection.
• Essence: The essence of the ROV07H820K-S lies in its ability to limit excessive voltage spikes and protect sensitive electronic components.
• Packaging/Quantity: It is commonly available in reels or bulk packaging, with quantities varying based on supplier and customer requirements.

Specifications

• Voltage Rating: 820V
• Maximum Allowable Voltage: 650V
• Peak Current (8/20μs): 4500A
• Energy (10/1000μs): 2J
• Operating Temperature Range: -40°C to +85°C
• Lead Material: Tin-plated copper

Detailed Pin Configuration

The ROV07H820K-S typically features two lead wires for connection, with one serving as the anode and the other as the cathode. The specific pin configuration may vary based on the manufacturer's design, but it generally follows standard varistor pin layouts.

Functional Features

• Transient Surge Protection: Effectively clamps excessive voltage spikes to protect downstream electronic components.
• Nonlinear Response: Exhibits a nonlinear voltage-current characteristic, rapidly changing resistance in response to voltage fluctuations.
• Fast Response Time: Provides rapid response to transient events, minimizing the impact of voltage surges on the circuit.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited energy handling capability compared to some larger varistors
• Sensitive to prolonged exposure to high temperatures

Working Principles

The ROV07H820K-S operates based on the principle of voltage-dependent resistance. When subjected to a voltage surge, the varistor's resistance decreases sharply, diverting excess current away from the protected circuit. This action helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The ROV07H820K-S finds extensive use in various applications, including: - Power supply units - Industrial control systems - Telecommunications equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• ROV05H820K-S: Lower profile variant suitable for space-constrained applications
• ROV20H820K-S: Higher energy handling capacity for more demanding surge protection requirements
• ROV10H820K-S: Intermediate model offering a balance between size and performance

In conclusion, the ROV07H820K-S varistor serves as a crucial component in safeguarding electronic circuits from voltage transients. Its unique characteristics and wide-ranging applications make it an essential part of modern electronic designs.

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