Littelfuse Inc.
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ROV14E301K-S-2
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ROV14E301K-S-2

Product Category

The ROV14E301K-S-2 belongs to the category of electronic components, specifically a varistor.

Basic Information Overview

  • Use: The varistor is used to protect electrical circuits against excessive transient voltage.
  • Characteristics: It exhibits non-linear resistance with respect to applied voltage and has high energy absorption capability.
  • Package: The varistor is typically housed in a disc-shaped or square package made of ceramic material.
  • Essence: Its essence lies in providing surge protection to sensitive electronic equipment.
  • Packaging/Quantity: The varistor is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

  • Voltage Rating: 14mm diameter, 300VAC
  • Maximum Allowable Voltage: 390V
  • Energy Absorption: 360J
  • Operating Temperature Range: -40°C to 85°C
  • Capacitance: 1000pF

Detailed Pin Configuration

The varistor has two terminals for connection to the circuit. Terminal 1 is the input terminal, while Terminal 2 is the output terminal.

Functional Features

  • Transient Voltage Suppression: Provides protection by clamping excessive voltage levels.
  • Fast Response Time: Reacts quickly to voltage surges, safeguarding connected devices.
  • High Energy Absorption: Capable of dissipating large amounts of energy during transient events.

Advantages and Disadvantages

  • Advantages:
    • Effective protection against voltage spikes
    • Fast response time
    • Wide operating temperature range
  • Disadvantages:
    • Limited lifespan after repeated voltage surges
    • Can introduce capacitance into the circuit

Working Principles

The varistor operates based on the principle of voltage-dependent resistance. When the voltage across its terminals exceeds the specified level, the varistor's resistance decreases significantly, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The ROV14E301K-S-2 is widely used in various applications such as: - Power supply units - Surge protectors - Industrial equipment - Telecommunication systems - Consumer electronics

Detailed and Complete Alternative Models

  • ROV10E301K-S-2: Similar varistor with a 10mm diameter
  • ROV20E301K-S-2: Larger varistor with a 20mm diameter
  • ROV14E302K-S-2: Variant with higher voltage rating

In conclusion, the ROV14E301K-S-2 varistor offers effective transient voltage suppression and finds extensive use in diverse electronic applications.

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Énumérez 10 questions et réponses courantes liées à l'application de ROV14E301K-S-2 dans les solutions techniques

  1. What is the ROV14E301K-S-2 used for?

    • The ROV14E301K-S-2 is a high-performance varistor designed to protect sensitive electronic equipment from voltage surges and transients.

  2. What is the maximum operating voltage of the ROV14E301K-S-2?

    • The maximum operating voltage of the ROV14E301K-S-2 is 300V.

  3. What are the typical applications of the ROV14E301K-S-2?

    • The ROV14E301K-S-2 is commonly used in power supplies, industrial equipment, telecommunications, and automotive electronics to provide overvoltage protection.

  4. How does the ROV14E301K-S-2 provide protection?

    • The ROV14E301K-S-2 acts as a voltage-dependent resistor, clamping excessive voltage and diverting surge currents away from sensitive components.

  5. What is the response time of the ROV14E301K-S-2?

    • The response time of the ROV14E301K-S-2 is typically very fast, providing rapid protection against transient voltage events.

  6. Can the ROV14E301K-S-2 be used in outdoor applications?

    • Yes, the ROV14E301K-S-2 is suitable for outdoor use and can withstand environmental conditions such as temperature variations and humidity.

  7. Is the ROV14E301K-S-2 lead-free and RoHS compliant?

    • Yes, the ROV14E301K-S-2 is lead-free and complies with the Restriction of Hazardous Substances (RoHS) directive.

  8. What is the energy absorption capability of the ROV14E301K-S-2?

    • The ROV14E301K-S-2 has a high energy absorption capability, making it effective in handling large surge currents.

  9. Does the ROV14E301K-S-2 require any special mounting considerations?

    • The ROV14E301K-S-2 can be surface-mounted or through-hole mounted, and proper PCB layout and thermal management are recommended for optimal performance.

  10. Are there any specific testing standards that the ROV14E301K-S-2 complies with?

    • The ROV14E301K-S-2 complies with international standards such as IEC 61000-4-5 for surge immunity testing, ensuring its reliability and performance in real-world applications.