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ROV14H471K-S-2
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ROV14H471K-S-2

Product Overview

Category: Electronic Component
Use: Voltage Dependent Resistor (VDR)
Characteristics: High voltage handling, surge protection
Package: Radial leaded
Essence: Protects electronic circuits from overvoltage
Packaging/Quantity: Bulk packaging, quantity varies

Specifications

  • Model: ROV14H471K-S-2
  • Voltage Rating: 470V
  • Maximum Allowable Voltage: 385V
  • Clamping Voltage: 775V
  • Peak Current (8/20µs): 100A
  • Energy (10/1000µs): 1.5J
  • Lead Spacing: 7.5mm
  • Dimensions: 14mm diameter, 25mm length

Detailed Pin Configuration

The ROV14H471K-S-2 has two radial leads, with the anode and cathode connections clearly marked.

Functional Features

  • Provides transient voltage suppression
  • Responds to overvoltage conditions rapidly
  • Offers high energy absorption capability

Advantages

  • Effectively protects sensitive electronic components
  • High surge current capability
  • Compact and easy to integrate into circuit designs

Disadvantages

  • Limited lifespan after multiple surge events
  • Requires careful consideration of placement in circuit design
  • May introduce some leakage current in normal operation

Working Principles

The ROV14H471K-S-2 operates based on the principle of varistor action, where its resistance decreases as the voltage across it increases, effectively shunting excess voltage away from the protected circuit.

Detailed Application Field Plans

  • Power supply units
  • Telecommunication equipment
  • Industrial control systems
  • Consumer electronics

Detailed and Complete Alternative Models

  • ROV10 Series: Lower voltage ratings for less demanding applications
  • ROV20 Series: Higher voltage ratings for more robust protection

In conclusion, the ROV14H471K-S-2 is a vital component in safeguarding electronic circuits from overvoltage events, offering high surge protection and energy absorption capabilities. Its application spans various industries, and while it has certain limitations, it remains a crucial element in ensuring the reliability of electronic systems.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan ROV14H471K-S-2 dalam solusi teknis

  1. What is the ROV14H471K-S-2 used for?

    • The ROV14H471K-S-2 is a varistor designed to protect electronic circuits and components from voltage surges and transient overvoltage conditions.

  2. What is the maximum voltage rating of the ROV14H471K-S-2?

    • The ROV14H471K-S-2 has a maximum voltage rating of 470V.

  3. What is the typical application of the ROV14H471K-S-2 in technical solutions?

    • The ROV14H471K-S-2 is commonly used in power supplies, industrial equipment, and consumer electronics to provide overvoltage protection.

  4. How does the ROV14H471K-S-2 function in a circuit?

    • When the voltage across the varistor exceeds its threshold, it conducts current and shunts the excess energy away from sensitive components, protecting them from damage.

  5. What are the key specifications of the ROV14H471K-S-2?

    • The ROV14H471K-S-2 has a maximum peak current of 4500A, a clamping voltage of 775V, and a nominal capacitance of 470pF.

  6. Can the ROV14H471K-S-2 be used in automotive applications?

    • Yes, the ROV14H471K-S-2 is suitable for use in automotive electronics to safeguard against voltage transients and spikes.

  7. Is the ROV14H471K-S-2 lead-free and RoHS compliant?

    • Yes, the ROV14H471K-S-2 is lead-free and complies with the Restriction of Hazardous Substances (RoHS) directive.

  8. What are the temperature and humidity operating ranges for the ROV14H471K-S-2?

    • The ROV14H471K-S-2 can operate within a temperature range of -40°C to +85°C and at a relative humidity of up to 85%.

  9. Does the ROV14H471K-S-2 require any additional heat sinking or cooling?

    • In most applications, the ROV14H471K-S-2 does not require additional heat sinking or cooling due to its low power dissipation characteristics.

  10. Are there any recommended layout considerations when integrating the ROV14H471K-S-2 into a PCB design?

    • It is advisable to minimize the distance between the varistor and the protected circuitry and to ensure a low-inductance path for the varistor's connections to optimize its performance.