Littelfuse Inc.
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ROV07H390K
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ROV07H390K

Product Overview

Category

The ROV07H390K belongs to the category of electronic components, specifically a varistor.

Use

It is used as a voltage-dependent resistor to protect circuits from excessive voltage surges.

Characteristics

  • Voltage-dependent nonlinear resistor
  • Protects against transient overvoltage
  • Ceramic disc construction
  • Fast response time

Package

The ROV07H390K is typically available in a disc-shaped package.

Essence

Essentially, the ROV07H390K serves as a protective component in electronic circuits, safeguarding them from voltage spikes and surges.

Packaging/Quantity

The ROV07H390K is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

  • Maximum Allowable Voltage: 390V
  • Energy (2ms): 0.1J
  • Peak Current (8/20μs): 2500A
  • Operating Temperature Range: -40°C to +85°C
  • Varistor Voltage: 615V ±10%

Detailed Pin Configuration

The ROV07H390K typically has two leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Connection point 1 - Pin 2: Connection point 2

Functional Features

  • Voltage clamping during transient overvoltage conditions
  • Rapid response to voltage spikes
  • High energy absorption capability

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • Wide operating temperature range

Disadvantages

  • Limited lifespan after multiple surge events
  • Susceptible to thermal runaway under extreme conditions

Working Principles

The ROV07H390K operates based on the principle of Zener breakdown, where it exhibits a highly nonlinear voltage-current characteristic. When the voltage across the varistor exceeds its threshold, it conducts heavily, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The ROV07H390K finds application in various electronic devices and systems, including: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the ROV07H390K include: - ROV05H390K - ROV10H390K - ROV14H390K

In summary, the ROV07H390K is a vital component in electronic circuits, providing crucial protection against voltage surges and spikes. Its fast response time and high energy absorption make it an essential part of many electronic systems.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi ROV07H390K dalam penyelesaian teknikal

  1. What is the ROV07H390K?

    • The ROV07H390K is a high-voltage metal oxide varistor (MOV) designed for overvoltage protection in various technical solutions.

  2. What are the key features of the ROV07H390K?

    • The ROV07H390K features a high energy absorption capability, fast response time, and low leakage current, making it suitable for surge protection applications.

  3. What voltage range does the ROV07H390K cover?

    • The ROV07H390K has a voltage range from 390V to 470V, providing protection against overvoltage events within this range.

  4. In what technical solutions can the ROV07H390K be used?

    • The ROV07H390K can be used in power supplies, industrial equipment, telecommunications systems, and other electronic devices requiring overvoltage protection.

  5. How does the ROV07H390K provide overvoltage protection?

    • The ROV07H390K clamps excessive voltage levels by diverting surge currents away from sensitive components, thereby safeguarding the connected equipment.

  6. What is the operating temperature range of the ROV07H390K?

    • The ROV07H390K operates within a temperature range of -40°C to 85°C, ensuring reliable performance in various environmental conditions.

  7. Is the ROV07H390K RoHS compliant?

    • Yes, the ROV07H390K is compliant with the Restriction of Hazardous Substances (RoHS) directive, meeting environmental standards.

  8. Can the ROV07H390K be used in automotive applications?

    • Yes, the ROV07H390K is suitable for automotive electronics, providing protection against voltage transients and surges in vehicle systems.

  9. What certifications does the ROV07H390K hold?

    • The ROV07H390K holds certifications such as UL recognition, CSA certification, and VDE approval, ensuring its compliance with industry standards.

  10. Where can I find detailed specifications and application notes for the ROV07H390K?

    • Detailed specifications and application notes for the ROV07H390K can be found on the manufacturer's website or in the product datasheet.