Littelfuse Inc.
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V300LA4PX2855
Voir les détails DataSheets

V300LA4PX2855

Product Overview

  • Category: Electronic Component
  • Use: Surge Protection
  • Characteristics: High energy absorption, fast response time
  • Package: Radial Lead Varistor
  • Essence: Protects electronic circuits from voltage surges
  • Packaging/Quantity: Bulk packaging, quantity varies

Specifications

  • Voltage Rating: 300V
  • Peak Current: 10kA
  • Energy Absorption: 85J
  • Operating Temperature: -40°C to +85°C
  • Dimensions: 7mm diameter, 10mm length

Detailed Pin Configuration

  • Pin 1: Input Terminal
  • Pin 2: Ground Terminal
  • Pin 3: Output Terminal

Functional Features

  • Fast response to voltage surges
  • High energy absorption capacity
  • Reliable protection for sensitive electronic components

Advantages and Disadvantages

  • Advantages:
    • Effective surge protection
    • Compact size
    • Wide operating temperature range
  • Disadvantages:
    • Limited to specific voltage ratings
    • Requires proper installation for optimal performance

Working Principles

The V300LA4PX2855 operates based on the principle of varistor action, where its resistance decreases as the voltage across it increases. When a surge occurs, the varistor rapidly conducts current, diverting excess energy away from the protected circuit.

Detailed Application Field Plans

  • Industrial Electronics: Protects control systems and equipment from power surges
  • Telecommunications: Safeguards sensitive communication devices from voltage spikes
  • Automotive Electronics: Provides surge protection for vehicle electrical systems

Detailed and Complete Alternative Models

  1. V250LA4PX2855
    • Voltage Rating: 250V
    • Peak Current: 8kA
    • Energy Absorption: 70J
  2. V320LA4PX2855
    • Voltage Rating: 320V
    • Peak Current: 12kA
    • Energy Absorption: 90J

This completes the entry for V300LA4PX2855, covering its product details, specifications, functional features, application field plans, and alternative models.

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Énumérez 10 questions et réponses courantes liées à l'application de V300LA4PX2855 dans les solutions techniques

  1. What is the V300LA4PX2855?

    • The V300LA4PX2855 is a metal oxide varistor (MOV) that provides overvoltage protection in electronic circuits.

  2. What are the key specifications of the V300LA4PX2855?

    • The V300LA4PX2855 has a maximum AC voltage of 250V, a maximum DC voltage of 320V, and a peak current of 6500A.

  3. How does the V300LA4PX2855 protect electronic circuits?

    • The V300LA4PX2855 clamps excessive voltage to a safe level by diverting the excess current away from the sensitive components.

  4. In what applications can the V300LA4PX2855 be used?

    • The V300LA4PX2855 is commonly used in power supplies, telecommunications equipment, industrial controls, and consumer electronics for surge protection.

  5. What is the response time of the V300LA4PX2855?

    • The response time of the V300LA4PX2855 is very fast, typically responding within nanoseconds to overvoltage events.

  6. Can the V300LA4PX2855 be used in outdoor environments?

    • Yes, the V300LA4PX2855 is suitable for outdoor use as it is designed to withstand harsh environmental conditions.

  7. What is the operating temperature range of the V300LA4PX2855?

    • The V300LA4PX2855 can operate within a temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  8. Is the V300LA4PX2855 RoHS compliant?

    • Yes, the V300LA4PX2855 is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  9. How should the V300LA4PX2855 be mounted on a PCB?

    • The V300LA4PX2855 can be surface-mounted or through-hole mounted on a PCB, following the recommended layout guidelines provided in the datasheet.

  10. What are the potential failure modes of the V300LA4PX2855?

    • The V300LA4PX2855 may fail due to prolonged exposure to overvoltage conditions or excessive current, so it's important to monitor its performance and replace it if necessary.