Littelfuse Inc.
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ROV05H431K
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ROV05H431K

Product Overview

Category

The ROV05H431K belongs to the category of electronic components, specifically a varistor.

Use

It is used as a voltage-dependent resistor to protect circuits from overvoltage conditions.

Characteristics

  • Voltage Protection: Protects against voltage spikes and surges.
  • Non-linear Response: Exhibits non-linear resistance characteristics in response to voltage changes.
  • Compact Size: Small form factor for easy integration into circuit designs.

Package

The ROV05H431K is typically available in a disc-shaped package with leads for soldering onto circuit boards.

Essence

The essence of the ROV05H431K lies in its ability to safeguard electronic circuits from voltage fluctuations and transient events.

Packaging/Quantity

It is commonly packaged in reels or trays, and the quantity per package varies based on manufacturer specifications.

Specifications

  • Maximum Allowable Voltage: 430V
  • Nominal Voltage: 275V
  • Peak Current Capability: 4500A
  • Energy Absorption: 60J

Detailed Pin Configuration

The ROV05H431K typically has two leads for connection to the circuit. The pin configuration is as follows: 1. Lead 1: Connected to one end of the varistor element 2. Lead 2: Connected to the other end of the varistor element

Functional Features

  • Voltage Clamping: When the voltage exceeds the threshold, the varistor conducts and clamps the voltage to protect the circuit.
  • Fast Response Time: Rapid reaction to voltage spikes ensures quick protection for sensitive components.
  • Reliability: Long operational life and consistent performance under varying conditions.

Advantages

  • Effective protection against voltage transients
  • Compact size for space-constrained applications
  • Wide operating temperature range

Disadvantages

  • Non-linear behavior may introduce complexities in circuit design
  • Limited lifespan under repeated high-energy events

Working Principles

The ROV05H431K operates based on the principle of voltage-dependent resistance. Under normal operating conditions, it exhibits high impedance. However, when the voltage exceeds a certain threshold, the varistor's resistance decreases sharply, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The ROV05H431K finds application in various electronic systems, including: - Power supply units - Surge protectors - Industrial control systems - Telecommunication equipment - Automotive electronics

Detailed and Complete Alternative Models

  • ROV10H431K: Higher energy absorption capacity
  • ROV05H471K: Lower clamping voltage for sensitive circuits
  • VDRS07H431BSE: Surface-mount alternative with similar characteristics

In conclusion, the ROV05H431K varistor serves as a crucial component in protecting electronic circuits from voltage disturbances. Its compact size, fast response time, and reliability make it an essential part of modern electronic designs across various industries.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ROV05H431K en soluciones técnicas

  1. What is ROV05H431K?

    • ROV05H431K is a type of varistor, also known as a voltage-dependent resistor, used to protect electronic circuits from overvoltage conditions.

  2. How does ROV05H431K work?

    • ROV05H431K works by exhibiting a high resistance at normal operating voltages and then rapidly decreasing its resistance when the voltage exceeds a certain threshold, effectively diverting excess current away from sensitive components.

  3. What are the typical applications of ROV05H431K?

    • ROV05H431K is commonly used in surge protection devices, power supplies, telecommunication equipment, and industrial control systems to safeguard against transient voltage spikes.

  4. What are the key specifications of ROV05H431K?

    • The key specifications of ROV05H431K include a maximum allowable voltage, energy absorption capability, response time, and operating temperature range.

  5. How do I select the right ROV05H431K for my application?

    • When selecting an ROV05H431K, consider the maximum voltage it will be exposed to, the energy of potential transients, and the required response time to ensure effective protection.

  6. Can ROV05H431K be used in outdoor environments?

    • Yes, ROV05H431K can be used in outdoor environments, but it's important to choose a varistor with appropriate environmental ratings to withstand exposure to moisture, temperature variations, and other outdoor conditions.

  7. What are the potential failure modes of ROV05H431K?

    • Common failure modes of ROV05H431K include degradation due to prolonged exposure to overvoltage events, thermal stress, and mechanical damage.

  8. Are there any reliability concerns with using ROV05H431K?

    • As with any electronic component, proper application and adherence to manufacturer guidelines are crucial to ensuring the reliability of ROV05H431K in technical solutions.

  9. Can ROV05H431K be used in low-power applications?

    • Yes, ROV05H431K can be used in low-power applications, but it's important to verify that the varistor's leakage current and standby power consumption are within acceptable limits.

  10. Where can I purchase ROV05H431K?

    • ROV05H431K can be purchased from authorized distributors, electronic component suppliers, or directly from the manufacturer's website.