Littelfuse Inc.
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V250LA20APX2855
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V250LA20APX2855 - Product Overview

Introduction

The V250LA20APX2855 is a voltage variable metal oxide varistor (MOV) that belongs to the category of electronic components used for surge protection. This entry provides an overview of the product, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Components/Surge Protection
  • Use: Surge protection in electronic circuits and devices
  • Characteristics: Voltage variable, metal oxide material, high energy absorption capability
  • Package: Standard electronic component package
  • Essence: Protecting electronic circuits from voltage surges
  • Packaging/Quantity: Typically packaged in reels or trays, quantity varies based on manufacturer's specifications

Specifications

  • Model: V250LA20APX2855
  • Maximum Allowable Voltage: 250V
  • Peak Current Capability: 10kA
  • Operating Temperature Range: -40°C to 85°C
  • Varistor Voltage: 395V
  • Energy Absorption Capability: 250J

Detailed Pin Configuration

The V250LA20APX2855 typically has two leads for connection in electronic circuits. The pin configuration may vary based on the manufacturer's specifications and packaging.

Functional Features

  • Surge Protection: Absorbs excess voltage and diverts it away from sensitive electronic components.
  • Fast Response Time: Rapidly responds to voltage surges to protect connected devices.
  • Reliability: Designed for long-term use and capable of withstanding multiple surge events.

Advantages and Disadvantages

Advantages

  • Effective surge protection for electronic circuits and devices
  • Fast response time
  • Reliable performance over multiple surge events

Disadvantages

  • Limited to specific voltage and current ratings
  • May require periodic replacement after significant surge events

Working Principles

The V250LA20APX2855 operates based on the principle of voltage-dependent resistance. When a voltage surge occurs, the varistor's resistance decreases, allowing it to absorb the excess energy and protect the connected circuit.

Detailed Application Field Plans

The V250LA20APX2855 is commonly used in various electronic applications, including: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • V130LA20APX2855
  • V275LA20APX2855
  • V320LA20APX2855
  • V385LA20APX2855

In summary, the V250LA20APX2855 is a voltage variable metal oxide varistor designed for surge protection in electronic circuits and devices. Its specifications, functional features, advantages and disadvantages, working principles, application field plans, and alternative models make it a crucial component in safeguarding electronic systems against voltage surges.

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Énumérez 10 questions et réponses courantes liées à l'application de V250LA20APX2855 dans les solutions techniques

  1. What is the V250LA20APX2855?

    • The V250LA20APX2855 is a metal oxide varistor (MOV) designed to protect electrical and electronic devices from overvoltage transients.

  2. What are the key specifications of the V250LA20APX2855?

    • The V250LA20APX2855 has a maximum continuous voltage rating of 250V, a peak current capability of 6500A, and an energy absorption capability of 100J.

  3. How does the V250LA20APX2855 function in a technical solution?

    • The V250LA20APX2855 acts as a voltage clamping device, diverting excess current away from sensitive components when an overvoltage event occurs.

  4. In what applications is the V250LA20APX2855 commonly used?

    • The V250LA20APX2855 is often employed in power supplies, industrial equipment, telecommunications systems, and consumer electronics to safeguard against transient voltage spikes.

  5. What are the advantages of using the V250LA20APX2855 in technical solutions?

    • The V250LA20APX2855 offers fast response times, high surge current capability, and reliability in protecting equipment from voltage surges.

  6. How should the V250LA20APX2855 be installed in a circuit?

    • The V250LA20APX2855 should be connected in parallel with the equipment to be protected, ensuring that it can shunt excess voltage away from sensitive components.

  7. What are the temperature and environmental considerations for the V250LA20APX2855?

    • The V250LA20APX2855 operates within a temperature range of -40°C to 85°C and is suitable for use in various indoor and outdoor environments.

  8. Can the V250LA20APX2855 be replaced after it has absorbed a surge?

    • Yes, the V250LA20APX2855 is designed to sacrifice itself to protect the connected equipment, and it should be replaced after a significant surge event.

  9. Are there any specific safety precautions to consider when using the V250LA20APX2855?

    • It's important to follow proper handling procedures and ensure that the V250LA20APX2855 is securely mounted to minimize the risk of damage or disconnection during a surge event.

  10. Where can I find detailed technical documentation for the V250LA20APX2855?

    • Detailed datasheets and application notes for the V250LA20APX2855 can be obtained from the manufacturer's website or authorized distributors.