ROV14E221K-S

Introduction

The ROV14E221K-S is a component belonging to the category of varistors, which are electronic devices used to protect circuits from excessive voltage surges. This entry will provide an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models of the ROV14E221K-S.

Basic Information Overview

• Category: Varistor
• Use: Protecting circuits from voltage surges
• Characteristics: High energy absorption capability, fast response time
• Package: Radial leaded disc
• Essence: Voltage protection
• Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

• Voltage Rating: 220V
• Peak Current: 100A
• Energy (2ms): 0.1J
• Operating Temperature: -40°C to +85°C
• Lead Material: Tin-plated copper

Detailed Pin Configuration

The ROV14E221K-S has a radial leaded disc package with two leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Connection point for one end of the circuit - Pin 2: Connection point for the other end of the circuit

Functional Features

• Voltage Clamping: When the voltage across the varistor exceeds its rating, it rapidly changes from a high impedance state to a low impedance state, effectively clamping the voltage to a safe level.
• Transient Protection: Provides protection against transient voltage spikes and surges.
• Fast Response Time: Reacts quickly to voltage fluctuations, minimizing the risk of damage to sensitive components.

Advantages and Disadvantages

Advantages

• Effective protection against voltage surges
• Fast response time
• Compact size

Disadvantages

• Limited lifespan under repeated surge events
• Susceptible to thermal aging

Working Principles

The ROV14E221K-S operates based on the principle of voltage-dependent resistance. Under normal operating conditions, it exhibits a high resistance. However, when subjected to a voltage surge, its resistance decreases significantly, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The ROV14E221K-S is commonly used in various electronic and electrical applications, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the ROV14E221K-S include: - ROV10E221K-S: Similar voltage rating and peak current - V14K220E-M3/86A: Comparable characteristics and package type - ERZ-C20DK221: Different package type but similar performance

In conclusion, the ROV14E221K-S varistor is a crucial component for protecting electronic circuits from voltage surges, offering fast response times and effective transient protection. While it has certain limitations, its compact size and high energy absorption capability make it a valuable asset in various applications.

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