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ROV20H621K
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ROV20H621K

Product Overview

Category

The ROV20H621K belongs to the category of electronic components, specifically a varistor.

Use

It is used as a voltage-dependent resistor to protect circuits from excessive transient voltage surges.

Characteristics

  • Voltage Dependent: Exhibits a non-linear voltage-current characteristic
  • Transient Voltage Surge Suppression: Protects sensitive electronic components from voltage spikes
  • High Energy Absorption Capacity: Can dissipate large amounts of energy during transient events

Package

The ROV20H621K is typically available in a disc-shaped package made of a ceramic material. The package is designed to withstand high energy transient events and provide insulation.

Essence

The essence of the ROV20H621K lies in its ability to protect electronic circuits from voltage surges, thereby enhancing the reliability and longevity of electronic devices.

Packaging/Quantity

The ROV20H621K is commonly packaged in reels or trays, with quantities varying based on customer requirements.

Specifications

  • Maximum Allowable Voltage: 620V
  • Energy (2ms): 20J
  • Peak Current (8/20μs): 6000A
  • Operating Temperature Range: -40°C to +85°C
  • Nominal Varistor Voltage (at 1mA DC): 510V

Detailed Pin Configuration

The ROV20H621K typically has two leads for connection to the circuit. These leads are solderable and allow for easy integration into the circuit design.

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage transients and surges
  • Fast Response Time: Rapidly clamps excessive voltages to protect downstream components
  • Reliable Performance: Consistent operation over a wide range of operating conditions

Advantages

  • Effective protection against voltage surges
  • Fast response time to transient events
  • Wide operating temperature range

Disadvantages

  • Non-linear voltage-current characteristic may require careful consideration in circuit design
  • Limited to specific voltage ranges

Working Principles

The ROV20H621K operates based on the principle of voltage-dependent resistance. When subjected to a transient voltage surge, the varistor rapidly changes its resistance to divert excess current away from sensitive components, thereby protecting the circuit.

Detailed Application Field Plans

The ROV20H621K finds application in various electronic systems, including: - Power Supplies - Telecommunication Equipment - Industrial Control Systems - Consumer Electronics

Detailed and Complete Alternative Models

  • ROV10H221K: Lower voltage rating for less demanding applications
  • ROV14H431K: Higher energy absorption capacity for more robust protection

In conclusion, the ROV20H621K varistor serves as a crucial component in safeguarding electronic circuits from transient voltage surges, offering reliable protection and contributing to the longevity of electronic devices.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van ROV20H621K in technische oplossingen

  1. What is the ROV20H621K?

    • The ROV20H621K is a metal oxide varistor (MOV) that provides overvoltage protection in electrical circuits.

  2. What is the maximum voltage rating of the ROV20H621K?

    • The maximum voltage rating of the ROV20H621K is 620V.

  3. What is the typical application of the ROV20H621K?

    • The ROV20H621K is commonly used in surge protection devices, power supplies, and other electronic equipment to protect against transient voltage spikes.

  4. How does the ROV20H621K provide overvoltage protection?

    • The ROV20H621K conducts excess voltage to ground, diverting it away from sensitive components and preventing damage.

  5. What is the energy absorption capability of the ROV20H621K?

    • The ROV20H621K has a high energy absorption capability, making it effective in handling transient overvoltage events.

  6. Is the ROV20H621K suitable for outdoor applications?

    • Yes, the ROV20H621K is designed to withstand outdoor conditions and can be used in outdoor electrical and electronic systems.

  7. Can the ROV20H621K be used in AC and DC circuits?

    • Yes, the ROV20H621K is suitable for both AC and DC applications.

  8. What are the temperature specifications for the ROV20H621K?

    • The ROV20H621K typically operates within a temperature range of -40°C to 85°C.

  9. Does the ROV20H621K require any additional protective measures?

    • In most cases, the ROV20H621K does not require additional protective measures when properly applied within its specified parameters.

  10. Where can I find detailed technical specifications for the ROV20H621K?

    • Detailed technical specifications for the ROV20H621K can be found in the product datasheet provided by the manufacturer or distributor.