Littelfuse Inc.
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ROV05H471K
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ROV05H471K Product Overview

Introduction

The ROV05H471K is a varistor belonging to the category of electronic components. It is commonly used for voltage regulation and surge protection in various electrical and electronic circuits.

Basic Information Overview

  • Category: Electronic Component
  • Use: Voltage Regulation, Surge Protection
  • Characteristics: High Voltage Capacity, Fast Response Time
  • Package: Disc-shaped, Ceramic Encapsulation
  • Essence: Protects Circuits from Voltage Surges
  • Packaging/Quantity: Typically Sold in Reels or Trays

Specifications

  • Voltage Rating: 470V
  • Maximum Allowable Voltage: 615V
  • Nominal Current: 1mA
  • Energy Absorption: 0.1J
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The ROV05H471K typically has two leads for connection in a circuit. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Voltage Regulation: Limits excessive voltage levels to protect downstream components.
  • Surge Protection: Absorbs and dissipates energy from transient voltage spikes.
  • Fast Response Time: Reacts quickly to voltage fluctuations to safeguard sensitive electronics.

Advantages and Disadvantages

Advantages

  • Effective voltage regulation
  • Fast response to surges
  • Compact size

Disadvantages

  • Limited current handling capacity
  • Susceptible to thermal degradation over time

Working Principles

The ROV05H471K operates based on the principle of non-linear resistance. When subjected to high voltage, it conducts current to limit the voltage across the circuit, thereby protecting connected devices.

Detailed Application Field Plans

The ROV05H471K finds applications in various fields, including: - Power Supplies - Telecommunications Equipment - Industrial Control Systems - Consumer Electronics

Detailed and Complete Alternative Models

  • ROV10H471K: Higher voltage rating variant
  • ROV05H331K: Lower voltage rating variant
  • MOV-14D471K: Metal Oxide Varistor with similar characteristics

In conclusion, the ROV05H471K varistor serves as a crucial component in safeguarding electronic circuits from voltage irregularities, making it an essential part of modern electronic systems.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням ROV05H471K у технічних рішеннях

  1. What is the ROV05H471K?

    • The ROV05H471K is a radial leaded varistor designed to protect sensitive electronics from voltage surges and transient events.

  2. What is the maximum voltage rating of the ROV05H471K?

    • The maximum voltage rating of the ROV05H471K is 470V.

  3. What is the typical application of the ROV05H471K?

    • The ROV05H471K is commonly used in power supplies, industrial equipment, and automotive electronics to protect against voltage spikes and surges.

  4. How does the ROV05H471K function in a circuit?

    • The ROV05H471K acts as a voltage-dependent resistor, conducting current when the voltage exceeds its threshold, thereby diverting excess energy away from sensitive components.

  5. What are the key specifications of the ROV05H471K?

    • The key specifications include a maximum continuous voltage rating of 385V, peak current capability of 4500A, and energy absorption capacity of 6J.

  6. Can the ROV05H471K be used in outdoor applications?

    • Yes, the ROV05H471K is suitable for outdoor applications due to its robust construction and ability to withstand environmental conditions.

  7. Is the ROV05H471K RoHS compliant?

    • Yes, the ROV05H471K is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it environmentally friendly.

  8. What are the recommended storage and operating temperatures for the ROV05H471K?

    • The recommended storage temperature range is -55°C to +125°C, and the operating temperature range is -40°C to +85°C.

  9. Can the ROV05H471K be used in high-frequency circuits?

    • Yes, the ROV05H471K has a low capacitance and can be used in high-frequency circuits without significant signal distortion.

  10. Are there any alternative varistors that can be used in place of the ROV05H471K?

    • Yes, similar varistors with different voltage ratings or form factors may be available, such as the ROV07H471K or the ROV14H471K, depending on specific application requirements.