Littelfuse Inc.
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ROV20E241K-S
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ROV20E241K-S

Product Overview

Category

The ROV20E241K-S belongs to the category of electronic components, specifically a varistor.

Use

It is used as a voltage-dependent resistor to protect circuits from excessive voltage surges.

Characteristics

  • Voltage-dependent nonlinear resistor
  • Protects against transient overvoltage
  • Fast response time
  • High energy absorption capability

Package

The ROV20E241K-S is typically available in a disc-shaped package with leads for easy integration into circuit boards.

Essence

The essence of the ROV20E241K-S lies in its ability to safeguard electronic circuits from voltage spikes and surges.

Packaging/Quantity

It is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

  • Maximum Allowable Voltage: 175V
  • Energy (2ms): 20J
  • Peak Current (8/20μs): 2500A
  • Operating Temperature Range: -40°C to +85°C
  • Varistor Voltage @1mA DC: 390V to 480V

Detailed Pin Configuration

The ROV20E241K-S has two leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Nonlinear voltage-current characteristics
  • Rapid response to voltage transients
  • Low leakage current
  • High surge current capability

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • Wide operating temperature range
  • High energy absorption capacity

Disadvantages

  • Limited lifespan after repeated exposure to surges
  • Susceptible to degradation over time

Working Principles

The ROV20E241K-S operates based on the principle of varistor action, where its resistance decreases as the applied voltage increases, thereby diverting excess current away from sensitive components.

Detailed Application Field Plans

The ROV20E241K-S is commonly used in various electronic devices and systems, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the ROV20E241K-S include: - MOV20D241K - V20E241P - ERZ-V20D241

In conclusion, the ROV20E241K-S is a vital component in protecting electronic circuits from voltage surges, offering fast response times and high energy absorption capabilities. While it has certain limitations, its functional features and wide application make it an essential part of many electronic systems.

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Énumérez 10 questions et réponses courantes liées à l'application de ROV20E241K-S dans les solutions techniques

  1. What is the ROV20E241K-S?

    • The ROV20E241K-S is a varistor, also known as a voltage-dependent resistor, designed to protect electronic circuits from overvoltage conditions.

  2. What are the key features of the ROV20E241K-S?

    • The key features of the ROV20E241K-S include a maximum AC voltage of 130V, a maximum DC voltage of 175V, and a peak current of 8000A.

  3. How does the ROV20E241K-S protect electronic circuits?

    • The ROV20E241K-S protects electronic circuits by rapidly changing its resistance in response to changes in voltage, thereby diverting excess current away from sensitive components.

  4. In what technical solutions can the ROV20E241K-S be used?

    • The ROV20E241K-S can be used in power supplies, industrial equipment, automotive systems, and other applications where protection against overvoltage is required.

  5. What are the typical failure modes of the ROV20E241K-S?

    • The typical failure modes of the ROV20E241K-S include degradation due to prolonged exposure to high voltage or current surges, as well as mechanical damage.

  6. What are the recommended operating conditions for the ROV20E241K-S?

    • The recommended operating conditions for the ROV20E241K-S include a temperature range of -40°C to +85°C and a maximum humidity of 85%.

  7. Can the ROV20E241K-S be used in outdoor applications?

    • Yes, the ROV20E241K-S is suitable for outdoor applications, but it should be protected from direct exposure to moisture and extreme temperatures.

  8. Are there any special handling considerations for the ROV20E241K-S?

    • When handling the ROV20E241K-S, it is important to avoid subjecting it to excessive mechanical stress or static discharge, as this could affect its performance.

  9. What are the industry standards and certifications applicable to the ROV20E241K-S?

    • The ROV20E241K-S complies with RoHS (Restriction of Hazardous Substances) requirements and may also meet other industry-specific standards depending on the application.

  10. Where can I find detailed technical specifications and application notes for the ROV20E241K-S?

    • Detailed technical specifications and application notes for the ROV20E241K-S can be found in the product datasheet provided by the manufacturer or distributor.