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ROV20H221K-2
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ROV20H221K-2

Product Overview

Category

The ROV20H221K-2 belongs to the category of varistors, which are electronic components used for voltage regulation and surge protection.

Use

It is primarily used for transient voltage suppression in various electronic circuits and devices.

Characteristics

  • High energy absorption capability
  • Fast response time
  • Wide operating temperature range
  • Low leakage current

Package

The ROV20H221K-2 is typically available in a disc-shaped package with leads for easy integration into circuit boards.

Essence

The essence of the ROV20H221K-2 lies in its ability to protect sensitive electronic components from voltage surges and transients.

Packaging/Quantity

It is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

  • Voltage Rating: 220V
  • Peak Current: 20kA
  • Operating Temperature Range: -40°C to 85°C
  • Capacitance: 1000pF
  • Tolerance: ±10%

Detailed Pin Configuration

The ROV20H221K-2 typically has two leads for connection to the circuit. The pin configuration may vary slightly based on the manufacturer, but the standard configuration includes a positive and negative lead for soldering onto the circuit board.

Functional Features

  • Surge Protection: Provides effective protection against voltage spikes and surges.
  • Fast Response: Rapidly clamps excessive voltage to safeguard connected components.
  • Reliability: Offers consistent performance over a wide range of operating conditions.

Advantages

  • Effective transient voltage suppression
  • Wide operating temperature range
  • High energy absorption capacity

Disadvantages

  • Limited capacitance value
  • Sensitive to extreme voltage fluctuations

Working Principles

The ROV20H221K-2 operates based on the principle of nonlinear voltage-dependent resistance. When subjected to high voltage transients, it rapidly changes its resistance to divert excess current away from sensitive components.

Detailed Application Field Plans

The ROV20H221K-2 is commonly used in: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • ROV10H221K-2: Lower peak current rating but suitable for less demanding applications.
  • ROV30H221K-2: Higher peak current rating for more robust surge protection.

In conclusion, the ROV20H221K-2 varistor is a crucial component in protecting electronic circuits from voltage transients and surges. Its high energy absorption capacity, fast response time, and wide operating temperature range make it an essential part of modern electronic designs.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi ROV20H221K-2 dalam penyelesaian teknikal

  1. What is the ROV20H221K-2?

    • The ROV20H221K-2 is a metal oxide varistor (MOV) designed for overvoltage protection in various electronic and electrical applications.

  2. What are the typical applications of ROV20H221K-2?

    • It is commonly used in surge protection devices, power supplies, industrial equipment, and telecommunications systems to protect against transient voltage spikes.

  3. What is the maximum voltage rating of ROV20H221K-2?

    • The maximum voltage rating of ROV20H221K-2 is 130V.

  4. What is the energy absorption capability of ROV20H221K-2?

    • It can absorb up to 20J of energy during a transient event.

  5. How does ROV20H221K-2 provide overvoltage protection?

    • When a voltage spike occurs, the varistor conducts current and diverts the excess energy away from sensitive components, thus protecting them from damage.

  6. Can ROV20H221K-2 be used in outdoor applications?

    • Yes, it is suitable for outdoor applications as it has a wide operating temperature range and is designed to withstand harsh environmental conditions.

  7. Is ROV20H221K-2 lead-free and RoHS compliant?

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

  8. What is the response time of ROV20H221K-2?

    • It has a fast response time, typically in nanoseconds, to quickly clamp the transient voltage and protect the circuit.

  9. Can multiple ROV20H221K-2 varistors be connected in parallel for higher current handling capacity?

    • Yes, they can be connected in parallel to increase the current handling capability for high-power applications.

  10. Are there any specific mounting or installation considerations for ROV20H221K-2?

    • It is important to follow the manufacturer's guidelines for proper mounting and installation to ensure optimal performance and reliability.