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MOV-20D820K
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MOV-20D820K

Product Overview

The MOV-20D820K belongs to the category of electronic components and is commonly used for surge protection in electrical circuits. This metal oxide varistor (MOV) is characterized by its high energy absorption capability, compact package, and reliable performance. It is typically packaged in a cylindrical form and is available in various quantities to suit different application needs.

Specifications

  • Model: MOV-20D820K
  • Maximum Allowable Voltage: 820V
  • Nominal Diameter: 20mm
  • Peak Current Capability: 10kA
  • Operating Temperature Range: -40°C to 85°C
  • Packaging: Bulk or Reel

Detailed Pin Configuration

The MOV-20D820K features two axial leads for easy integration into circuit boards. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Surge Protection: Effectively absorbs and dissipates transient voltage surges.
  • Fast Response Time: Rapidly clamps excessive voltage to protect downstream components.
  • Reliable Performance: Ensures long-term stability and durability in surge-prone environments.

Advantages and Disadvantages

Advantages

  • High energy absorption capability
  • Compact design for space-constrained applications
  • Wide operating temperature range

Disadvantages

  • Limited peak current capability compared to higher-rated varistors
  • Sensitive to prolonged overvoltage conditions

Working Principles

The MOV-20D820K operates based on the non-linear voltage-current characteristics of metal oxide materials. When subjected to overvoltage conditions, the varistor rapidly changes its resistance to divert excess current away from sensitive components, thereby protecting the circuit from damage.

Detailed Application Field Plans

The MOV-20D820K is commonly employed in various electrical and electronic systems, including: - Power distribution units - Surge protectors - Industrial control panels - Telecommunication equipment - Consumer electronics

Detailed and Complete Alternative Models

For applications requiring different voltage ratings or form factors, alternative models to consider include: - MOV-14D431K (14mm diameter, 430V) - MOV-25S431K (25mm square form factor, 430V) - MOV-20D102K (20mm diameter, 1000V)

In conclusion, the MOV-20D820K serves as a reliable surge protection component with its high energy absorption capability and compact design. While it offers effective transient voltage suppression, users should be mindful of its limitations in peak current handling and prolonged overvoltage exposure. Understanding its working principles and considering alternative models can aid in optimizing its use across diverse application fields.

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10個與MOV-20D820K在技術方案中應用相關的常見問題與解答

  1. What is MOV-20D820K?

    • MOV-20D820K is a metal oxide varistor (MOV) component used for surge protection in electrical circuits.

  2. Where can MOV-20D820K be used?

    • MOV-20D820K can be used in various technical solutions such as power supplies, industrial equipment, telecommunications systems, and consumer electronics.

  3. How does MOV-20D820K provide surge protection?

    • MOV-20D820K clamps excessive voltage by diverting the surge current away from sensitive components, thereby protecting them from damage.

  4. What is the maximum energy absorption capability of MOV-20D820K?

    • MOV-20D820K has a maximum energy absorption capability of 20J.

  5. What is the voltage rating of MOV-20D820K?

    • MOV-20D820K has a voltage rating of 820V.

  6. Can MOV-20D820K be used in outdoor applications?

    • Yes, MOV-20D820K is suitable for outdoor applications as it is designed to withstand environmental conditions.

  7. Is MOV-20D820K RoHS compliant?

    • Yes, MOV-20D820K is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  8. What are the typical failure modes of MOV-20D820K?

    • MOV-20D820K can fail due to overvoltage events, prolonged exposure to high temperatures, or aging.

  9. Are there any special mounting considerations for MOV-20D820K?

    • MOV-20D820K should be mounted close to the protected circuitry and connected with short, low-inductance leads for optimal performance.

  10. Can MOV-20D820K be replaced if it fails?

    • Yes, MOV-20D820K can be replaced if it fails, but it is important to follow proper safety procedures and consider the root cause of the failure to prevent future issues.