Littelfuse Inc.
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ROV07H121K
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ROV07H121K Product Overview

Introduction

The ROV07H121K is a vital component in the field of electronic devices, offering a range of features and characteristics that make it an essential part of various applications. This entry will provide a comprehensive overview of the ROV07H121K, covering its product details, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Component
  • Use: Voltage Dependent Resistor (VDR)
  • Characteristics: High voltage capability, fast response time, compact size
  • Package: Radial leaded disc
  • Essence: Protects electronic circuits from overvoltage conditions
  • Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

  • Voltage Rating: 120V
  • Maximum Allowable Voltage: 100V
  • Clamping Voltage: 200V
  • Peak Current: 5000A
  • Energy Absorption: 0.1J
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ROV07H121K features a radial leaded disc package with two leads for easy integration into circuit designs. The pin configuration includes a positive lead and a negative lead, allowing for straightforward connection within electronic systems.

Functional Features

  • Overvoltage Protection: Safeguards electronic circuits by diverting excessive voltage away from sensitive components.
  • Fast Response Time: Reacts quickly to voltage surges, minimizing the risk of damage to connected devices.
  • Compact Design: Space-efficient construction enables seamless integration into various electronic applications.

Advantages and Disadvantages

Advantages

  • Effective overvoltage protection
  • Fast response time
  • Compact size for versatile integration

Disadvantages

  • Limited energy absorption capacity compared to larger VDRs
  • Lower maximum allowable voltage than some alternative models

Working Principles

The ROV07H121K operates based on the principle of varistor action, where its resistance decreases as the applied voltage increases. This characteristic allows it to effectively shunt excess voltage and protect downstream components.

Detailed Application Field Plans

The ROV07H121K finds extensive use in various electronic applications, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Several alternative models to the ROV07H121K include: - ROV05H101K: A lower voltage rating variant suitable for less demanding applications - ROV14H201K: A higher voltage rating variant for applications requiring increased protection levels - ROV20H331K: A VDR with higher energy absorption capabilities for more robust overvoltage protection

In conclusion, the ROV07H121K plays a crucial role in protecting electronic circuits from overvoltage conditions, offering fast response times and compact design. Its specifications, functional features, advantages, and disadvantages make it a valuable component across a wide range of electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ROV07H121K v technických řešeních

  1. What is the ROV07H121K component used for in technical solutions?

    • The ROV07H121K is a varistor, commonly used for overvoltage protection in electronic circuits.

  2. What are the key specifications of the ROV07H121K varistor?

    • The ROV07H121K has a voltage rating of 120V and a maximum peak current of 8000A.

  3. How does the ROV07H121K varistor 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 types of applications is the ROV07H121K commonly used?

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

  5. What are the typical failure modes of the ROV07H121K varistor?

    • The varistor can fail due to prolonged exposure to overvoltage conditions or excessive current surges, leading to degradation or short-circuiting.

  6. Are there any temperature limitations for the ROV07H121K varistor?

    • Yes, the operating temperature range for the ROV07H121K is typically -40°C to +85°C.

  7. Can the ROV07H121K be used in automotive applications?

    • Yes, it can be used in automotive systems for transient voltage suppression and protection.

  8. What are the recommended soldering techniques for the ROV07H121K?

    • It is recommended to use wave soldering or reflow soldering methods to ensure proper connection and avoid damaging the varistor.

  9. Does the ROV07H121K require any additional protective components in a circuit?

    • In some cases, it may be beneficial to use a fuse or a thermal cutoff device in conjunction with the varistor for added protection.

  10. Where can I find detailed application notes for using the ROV07H121K in technical solutions?

    • Detailed application notes and guidelines can be found in the datasheet provided by the manufacturer or through their technical support resources.