Littelfuse Inc.
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ROV07H681K
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ROV07H681K Product Overview

Introduction

The ROV07H681K is a vital component in the field of electronic circuit protection. This varistor belongs to the category of voltage-dependent resistors and is widely used for surge suppression and transient voltage protection in various electronic devices and systems.

Basic Information Overview

  • Category: Voltage-Dependent Resistor (Varistor)
  • Use: Surge Suppression, Transient Voltage Protection
  • Characteristics: High Energy Absorption, Fast Response Time
  • Package: Disc, Radial-Leaded
  • Essence: Protects Electronic Circuits from Voltage Surges
  • Packaging/Quantity: Typically Packed in Reel or Bulk Quantities

Specifications

  • Voltage Rating: 680V
  • Maximum Allowable Voltage: 420V
  • Peak Current Capability: 4500A
  • Energy Absorption: 360J
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ROV07H681K features a radial-leaded package with two leads for easy integration into electronic circuits. The pin configuration includes a positive lead and a negative lead, allowing for straightforward installation and connection within circuit designs.

Functional Features

  • Surge Suppression: Effectively absorbs and dissipates high-energy transients and surges.
  • Fast Response Time: Rapidly responds to voltage spikes, safeguarding connected components.
  • Reliable Protection: Provides consistent and reliable protection against transient voltage events.

Advantages and Disadvantages

Advantages

  • High Energy Absorption Capacity
  • Fast Response to Transient Events
  • Compact and Easy to Integrate

Disadvantages

  • Limited Lifespan After Repeated Surge Events
  • Susceptible to Overheating if Exposed to Prolonged High Voltage Conditions

Working Principles

The ROV07H681K operates based on the principle of voltage-dependent resistance. When subjected to a surge or transient voltage event, the varistor's resistance decreases, allowing it to absorb and dissipate the excess energy, thereby protecting the connected circuitry.

Detailed Application Field Plans

The ROV07H681K finds extensive application in various electronic and electrical systems, including: - Power Supplies - Telecommunications Equipment - Industrial Control Systems - Consumer Electronics - Automotive Electronics

Detailed and Complete Alternative Models

  1. ROV10 Series: Offers higher energy absorption and voltage ratings.
  2. VDRS Series: Provides alternative form factors and packaging options.
  3. MOV20D Series: Utilizes metal oxide technology for surge protection.

In conclusion, the ROV07H681K varistor serves as a crucial component in safeguarding electronic circuits from transient voltage events, offering reliable surge suppression and protection. Its compact design, high energy absorption capacity, and fast response time make it an essential choice for diverse applications in the electronics industry.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق ROV07H681K في الحلول التقنية

  1. What is the ROV07H681K used for?

    • The ROV07H681K is a varistor used for overvoltage protection in electronic circuits.

  2. What are the key specifications of the ROV07H681K?

    • The ROV07H681K has a voltage rating of 680V, a maximum peak current of 4500A, and a capacitance of 470pF.

  3. How does the ROV07H681K provide overvoltage protection?

    • When the voltage across the varistor exceeds its threshold, it conducts and shunts the excess current to protect the circuit.

  4. In what applications can the ROV07H681K be used?

    • It is commonly used in power supplies, industrial equipment, and consumer electronics for surge suppression.

  5. What are the advantages of using the ROV07H681K?

    • It offers fast response to overvoltage events, high energy absorption capability, and low leakage current.

  6. How should the ROV07H681K be connected in a circuit?

    • It should be connected in parallel with the load or component requiring protection from overvoltage.

  7. What are the operating temperature and storage conditions for the ROV07H681K?

    • It typically operates within a temperature range of -40°C to 85°C and should be stored in a dry environment.

  8. Can the ROV07H681K be used in automotive applications?

    • Yes, it is suitable for automotive electronics where overvoltage protection is required.

  9. Is the ROV07H681K RoHS compliant?

    • Yes, it complies with the Restriction of Hazardous Substances directive.

  10. Are there any recommended alternative components to the ROV07H681K?

    • Similar varistors from other manufacturers include the EPCOS S14K680 and Littelfuse V14K680.