Littelfuse Inc.
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ROV20H470L-2
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ROV20H470L-2

Product Category

The ROV20H470L-2 belongs to the category of high-power metal oxide varistors (MOV) used for surge protection in electrical and electronic systems.

Basic Information Overview

  • Use: The ROV20H470L-2 is designed to protect sensitive electronic devices and equipment from transient voltage surges.
  • Characteristics: It exhibits high energy absorption capability, fast response time, and low leakage current.
  • Package: The varistor is encapsulated in a flame-retardant epoxy resin, providing mechanical protection and insulation.
  • Essence: Its essence lies in its ability to limit excessive voltage and divert surge currents away from sensitive components.
  • Packaging/Quantity: Typically supplied in tape and reel packaging for automated assembly, with quantities varying based on customer requirements.

Specifications

  • Voltage Rating: 470V
  • Peak Current Capability: 20kA
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Energy Absorption: 360J
  • Leakage Current: <1µA

Detailed Pin Configuration

The ROV20H470L-2 features a radial leaded package with two leads for through-hole mounting. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Rapidly clamps excessive voltage to protect downstream circuitry.
  • High Energy Absorption: Capable of dissipating large amounts of energy during surge events.
  • Low Leakage Current: Ensures minimal power dissipation under normal operating conditions.

Advantages and Disadvantages

  • Advantages:
    • Effective surge protection for sensitive electronics.
    • Fast response time.
    • Low leakage current minimizes power consumption.
  • Disadvantages:
    • Limited to specific voltage ratings.
    • Requires periodic testing and replacement in high-stress environments.

Working Principles

The varistor operates based on the non-linear voltage-current characteristics of metal oxide materials. Under normal conditions, it presents a high resistance, but when subjected to overvoltage conditions, its resistance decreases sharply, diverting excess current and limiting the voltage across protected circuits.

Detailed Application Field Plans

The ROV20H470L-2 is suitable for a wide range of applications including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

  • ROV14H471K-S: 470V, 14mm disc diameter
  • ROV05H471K: 470V, 5mm disc diameter
  • ROV20H471K: 470V, 20mm disc diameter

This comprehensive range of alternative models provides options for various space and performance requirements.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem ROV20H470L-2 w rozwiązaniach technicznych

  1. What is the ROV20H470L-2?

    • The ROV20H470L-2 is a high-power, high-voltage diode designed for use in various technical solutions requiring robust and efficient power management.

  2. What are the key features of the ROV20H470L-2?

    • The ROV20H470L-2 features a high reverse voltage, low forward voltage drop, and high surge current capability, making it suitable for demanding applications.

  3. In what technical solutions can the ROV20H470L-2 be used?

    • The ROV20H470L-2 can be used in power supplies, motor drives, welding equipment, and other high-power electronic systems.

  4. What are the benefits of using the ROV20H470L-2 in technical solutions?

    • Using the ROV20H470L-2 can improve efficiency, reliability, and performance in power management applications, leading to enhanced system operation.

  5. What is the maximum operating temperature of the ROV20H470L-2?

    • The ROV20H470L-2 has a maximum operating temperature of [insert temperature here]°C, ensuring its suitability for various environmental conditions.

  6. Does the ROV20H470L-2 require any special cooling or heat dissipation measures?

    • Depending on the application and operating conditions, proper thermal management may be necessary to ensure optimal performance and longevity of the ROV20H470L-2.

  7. Can the ROV20H470L-2 be used in automotive applications?

    • Yes, the ROV20H470L-2 is suitable for automotive applications such as electric vehicle powertrains, battery management systems, and charging infrastructure.

  8. What are the recommended mounting and soldering techniques for the ROV20H470L-2?

    • The ROV20H470L-2 should be mounted and soldered according to the guidelines provided in the datasheet to ensure reliable electrical connections and mechanical stability.

  9. Are there any specific ESD protection considerations when handling the ROV20H470L-2?

    • It is important to follow proper electrostatic discharge (ESD) precautions when handling the ROV20H470L-2 to prevent damage to the device.

  10. Where can I find detailed technical specifications and application notes for the ROV20H470L-2?

    • Detailed technical specifications and application notes for the ROV20H470L-2 can be found in the product datasheet and related documentation available from the manufacturer's website or authorized distributors.