Littelfuse Inc.
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ROV05H221K
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ROV05H221K Product Overview

Introduction

The ROV05H221K is a vital component in the field of electronic circuitry, serving as a crucial element in various applications. This entry will provide an in-depth analysis of the product, covering its basic information overview, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

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

Specifications

  • Model: ROV05H221K
  • Maximum Allowable Voltage: 220V
  • Varistor Voltage: 200V ±10%
  • Clamping Voltage: 360V
  • Peak Current (8/20µs): 2500A
  • Operating Temperature Range: -40°C to +85°C
  • Nominal Diameter: 5mm

Detailed Pin Configuration

The ROV05H221K features a radial leaded disc package with two leads for easy integration into electronic circuits. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Overvoltage Protection: Safeguards electronic components by diverting excessive voltage away from sensitive parts of the circuit.
  • Fast Response Time: Rapid reaction to overvoltage conditions, minimizing the risk of damage to connected devices.
  • Low Leakage Current: Ensures minimal power dissipation during normal operation.

Advantages and Disadvantages

Advantages

  • Effective overvoltage protection
  • Fast response time
  • Low leakage current

Disadvantages

  • Limited maximum allowable voltage
  • Requires careful consideration of clamping voltage in high-energy environments

Working Principles

The ROV05H221K operates based on the principle of varistor action, where its resistance decreases as the applied voltage increases. When the voltage exceeds the varistor voltage, the device conducts current, effectively shunting the excess energy and protecting the circuit.

Detailed Application Field Plans

The ROV05H221K finds extensive use in various applications, including: - Power supplies - Telecommunications equipment - Consumer electronics - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

  • ROV10H221K: Higher maximum allowable voltage variant
  • ROV05H101K: Lower varistor voltage variant
  • ROV20H221K: Higher peak current handling capacity

In conclusion, the ROV05H221K plays a critical role in safeguarding electronic circuits from overvoltage events, offering fast response times and low leakage current. Its application spans across diverse industries, making it an indispensable component in modern electronic designs.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням ROV05H221K у технічних рішеннях

  1. What is the application of ROV05H221K in technical solutions?

    • ROV05H221K is commonly used as a ceramic capacitor in various technical solutions, including power supplies, lighting systems, and electronic devices.

  2. What are the key features of ROV05H221K?

    • ROV05H221K is a radial leaded multilayer ceramic capacitor with a 220pF capacitance, 50V voltage rating, and ±10% tolerance.

  3. How does ROV05H221K contribute to EMI suppression in technical solutions?

    • ROV05H221K helps to suppress electromagnetic interference (EMI) by filtering out high-frequency noise and providing stable capacitance in circuits.

  4. In what types of circuits can ROV05H221K be used?

    • ROV05H221K can be used in various circuits such as oscillators, filters, timing circuits, and coupling/decoupling applications.

  5. What are the temperature characteristics of ROV05H221K?

    • ROV05H221K has a temperature coefficient of NP0, which means it exhibits minimal capacitance change over a wide temperature range.

  6. Can ROV05H221K be used in high-voltage applications?

    • No, ROV05H221K is designed for low-voltage applications with a maximum voltage rating of 50V.

  7. What are the recommended storage conditions for ROV05H221K?

    • It is recommended to store ROV05H221K in a cool, dry environment at room temperature to maintain its performance and reliability.

  8. Does ROV05H221K have any special handling requirements during assembly?

    • ROV05H221K should be handled carefully to avoid mechanical stress or excessive bending of the leads during assembly onto PCBs.

  9. Are there any alternative part numbers or equivalents for ROV05H221K?

    • Yes, similar capacitors with different manufacturers' part numbers may be available, but it's important to verify their specifications and compatibility with the intended application.

  10. What are the typical failure modes associated with ROV05H221K?

    • Common failure modes include open circuit due to mechanical damage, excessive voltage stress, or exposure to environmental contaminants. Regular testing and inspection can help prevent these issues.