Littelfuse Inc.
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ROV20H621K-2
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ROV20H621K-2

Introduction

The ROV20H621K-2 is a specialized electronic component designed for specific applications. This entry provides an in-depth overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product Overview

Category

The ROV20H621K-2 belongs to the category of electronic components, specifically varistors.

Use

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

Characteristics

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

Package

The ROV20H621K-2 is typically available in a cylindrical package with leads for easy integration into circuit boards.

Essence

The essence of this product lies in its ability to rapidly dissipate excess energy during transient voltage events, safeguarding sensitive electronic equipment.

Packaging/Quantity

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

Specifications

  • Maximum Allowable Voltage: 130V
  • Clamping Voltage: 340V
  • Peak Current (8/20μs): 6000A
  • Energy (10/1000μs): 20J
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ROV20H621K-2 typically consists of two leads for connection to the circuit. The pin configuration may vary based on the manufacturer's specifications.

Functional Features

  • Rapid response to transient voltage spikes
  • Absorption of high-energy transients
  • Minimal impact on normal circuit operation

Advantages and Disadvantages

Advantages

  • Effective protection against voltage surges
  • Wide operating temperature range
  • Low leakage current

Disadvantages

  • Limited maximum allowable voltage
  • Requires careful consideration of placement within the circuit

Working Principles

The ROV20H621K-2 operates based on the principle of nonlinear voltage-dependent resistance. When subjected to a transient overvoltage condition, the varistor rapidly changes its resistance, diverting excess energy away from the protected circuit.

Detailed Application Field Plans

The ROV20H621K-2 finds extensive use in various electronic systems, including: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • ROV10H221K-2
  • ROV14H331K-2
  • ROV25H471K-2
  • ROV30H561K-2

In conclusion, the ROV20H621K-2 serves as a crucial component in protecting electronic circuits from transient overvoltage events. Its high energy absorption capability, fast response time, and wide operating temperature range make it a valuable asset in diverse applications.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق ROV20H621K-2 في الحلول التقنية

  1. What is the ROV20H621K-2?

    • The ROV20H621K-2 is a high-voltage metal oxide varistor (MOV) designed for overvoltage protection in various electronic and electrical systems.

  2. What are the key features of the ROV20H621K-2?

    • The key features include a high surge current capability, fast response time, low leakage current, and excellent energy absorption capability.

  3. Where can the ROV20H621K-2 be used in technical solutions?

    • The ROV20H621K-2 can be used in applications such as power supplies, industrial equipment, telecommunications, automotive electronics, and surge protectors.

  4. How does the ROV20H621K-2 provide overvoltage protection?

    • The ROV20H621K-2 clamps excessive voltage to a safe level by diverting the surge current away from sensitive components, thereby protecting the circuit from damage.

  5. What is the maximum operating voltage of the ROV20H621K-2?

    • The maximum operating voltage is typically 130V AC or 175V DC.

  6. Is the ROV20H621K-2 suitable for outdoor applications?

    • Yes, the ROV20H621K-2 is designed to withstand outdoor conditions and is suitable for outdoor applications where overvoltage protection is required.

  7. Can the ROV20H621K-2 be used in conjunction with other protective devices?

    • Yes, the ROV20H621K-2 can be used in combination with other protective devices such as fuses, circuit breakers, and gas discharge tubes for enhanced protection.

  8. What is the typical lifespan of the ROV20H621K-2?

    • The typical lifespan is several years under normal operating conditions, but it should be checked periodically for degradation.

  9. Does the ROV20H621K-2 require any special mounting considerations?

    • It is recommended to mount the ROV20H621K-2 close to the protected circuit to minimize lead lengths and reduce inductance.

  10. Are there any specific environmental or temperature requirements for the ROV20H621K-2?

    • The ROV20H621K-2 is designed to operate within a wide temperature range and is suitable for various environmental conditions, making it versatile for different technical solutions.