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V420LA7
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V420LA7

Product Overview

  • Category: Varistor
  • Use: Surge protection
  • Characteristics: High energy absorption, fast response time
  • Package: Disc
  • Essence: Metal oxide
  • Packaging/Quantity: Bulk packaging, quantity varies

Specifications

  • Voltage Rating: 420V
  • Peak Current: 10kA
  • Energy Absorption: 360J
  • Operating Temperature: -40°C to +85°C
  • Dimensions: 14mm diameter

Detailed Pin Configuration

The V420LA7 varistor has a disc shape with two terminals for connection. The pin configuration is as follows: - Terminal 1: Input - Terminal 2: Ground

Functional Features

  • Surge Protection: Provides protection against voltage surges and transients.
  • Fast Response Time: Quickly clamps excessive voltage to protect sensitive equipment.

Advantages and Disadvantages

Advantages

  • High energy absorption capacity
  • Fast response time
  • Reliable surge protection

Disadvantages

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

Working Principles

The V420LA7 varistor operates based on the principle of voltage-dependent resistance. When subjected to a surge or transient voltage, the varistor's resistance decreases rapidly, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The V420LA7 varistor is commonly used in various applications requiring surge protection, including: - Power distribution systems - Telecommunication equipment - Industrial machinery - Consumer electronics

Detailed and Complete Alternative Models

  • V130LA20A: Lower voltage rating (130V) for less demanding applications
  • V275LA20AP: Higher voltage rating (275V) for more robust surge protection
  • V680LA80BP: Higher energy absorption (680J) for high-risk environments

This comprehensive range of alternative models allows for tailored surge protection solutions across different voltage and energy absorption requirements.

This content provides a detailed overview of the V420LA7 varistor, covering its product information, specifications, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.

技術ソリューションにおける V420LA7 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the V420LA7?

    • The V420LA7 is a metal oxide varistor (MOV) component used for transient voltage suppression in electronic circuits.

  2. What are the key specifications of the V420LA7?

    • The V420LA7 has a maximum allowable voltage of 420V and a peak current capability of 6500A.

  3. How does the V420LA7 protect electronic circuits?

    • The V420LA7 suppresses transient voltage spikes by diverting excess current away from sensitive components, thereby protecting them from damage.

  4. In what applications is the V420LA7 commonly used?

    • The V420LA7 is often used in power supplies, industrial equipment, telecommunications devices, and consumer electronics to safeguard against voltage surges.

  5. What is the operating temperature range of the V420LA7?

    • The V420LA7 is designed to operate within a temperature range of -40°C to 85°C, making it suitable for various environmental conditions.

  6. Can the V420LA7 be used in both AC and DC circuits?

    • Yes, the V420LA7 is suitable for use in both AC and DC circuits, providing versatile transient voltage protection.

  7. How should the V420LA7 be connected in a circuit?

    • The V420LA7 should be connected in parallel with the load or equipment to be protected, ensuring that it can shunt excess voltage when necessary.

  8. What is the response time of the V420LA7?

    • The V420LA7 has a fast response time, typically clamping transient voltages within nanoseconds to effectively protect the connected circuitry.

  9. Are there any precautions to consider when using the V420LA7?

    • It's important to ensure proper grounding and mounting of the V420LA7 to maximize its effectiveness in suppressing transient voltage events.

  10. Is the V420LA7 RoHS compliant?

    • Yes, the V420LA7 is compliant with the Restriction of Hazardous Substances (RoHS) directive, meeting environmental standards for electronic components.