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MOV-20D221K
نمایش جزئیات برگه های اطلاعات

MOV-20D221K

Product Overview

Category: Electronic Component
Use: Surge Protection
Characteristics: High energy absorption, fast response time
Package: Radial Leaded
Essence: Metal Oxide Varistor
Packaging/Quantity: Bulk packaging, quantity varies

Specifications

  • Voltage Rating: 20V
  • Peak Current: 10kA
  • Energy Absorption: 350J
  • Operating Temperature: -40°C to +85°C
  • Dimensions: 7mm diameter, 8.5mm length

Detailed Pin Configuration

The MOV-20D221K has two radial leads for easy mounting on a circuit board or in a housing.

Functional Features

  • Provides protection against voltage surges and transients
  • Fast response time to divert excess energy away from sensitive components
  • Reliable performance under varying environmental conditions

Advantages and Disadvantages

Advantages: - High energy absorption capacity - Fast response time - Wide operating temperature range

Disadvantages: - Limited lifespan after repeated surge events - Requires periodic testing and replacement

Working Principles

The MOV-20D221K operates based on the metal oxide varistor (MOV) principle, where it exhibits a high resistance at normal operating voltages but rapidly becomes conductive when subjected to overvoltage conditions, shunting the excess energy to protect downstream components.

Detailed Application Field Plans

The MOV-20D221K is commonly used in various electronic devices and systems to safeguard against transient voltage spikes, including: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • MOV-14D221K: Lower voltage rating, suitable for less demanding applications
  • MOV-25D221K: Higher voltage rating, ideal for more robust surge protection requirements
  • MOV-20D331K: Similar voltage rating with higher energy absorption capability

This comprehensive entry provides an in-depth understanding of the MOV-20D221K, covering its specifications, functional features, application field plans, and alternative models, making it a valuable resource for professionals and enthusiasts in the electronics industry.

10 سوال و پاسخ رایج مربوط به کاربرد MOV-20D221K در راه حل های فنی را فهرست کنید

  1. What is MOV-20D221K?

    • MOV-20D221K is a metal oxide varistor (MOV) with a voltage rating of 20V and a maximum peak current of 10kA.

  2. Where can MOV-20D221K be used?

    • MOV-20D221K can be used in surge protection applications for electronic devices, power supplies, and communication equipment.

  3. How does MOV-20D221K provide surge protection?

    • MOV-20D221K clamps transient overvoltages by diverting excess current away from sensitive components, thus protecting them from damage.

  4. What are the key specifications of MOV-20D221K?

    • The key specifications include a maximum allowable voltage of 20V, a peak current of 10kA, and a response time of nanoseconds.

  5. Is MOV-20D221K suitable for outdoor use?

    • Yes, MOV-20D221K is designed to withstand outdoor conditions and can be used in outdoor surge protection applications.

  6. Can MOV-20D221K be used in AC and DC circuits?

    • Yes, MOV-20D221K is suitable for both AC and DC circuits, providing surge protection in various types of electrical systems.

  7. What is the operating temperature range of MOV-20D221K?

    • MOV-20D221K typically operates within a temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  8. How should MOV-20D221K be installed in a circuit?

    • MOV-20D221K should be connected in parallel with the load or equipment to be protected, ensuring that it can shunt excess voltage during a surge event.

  9. What are the potential failure modes of MOV-20D221K?

    • MOV-20D221K may degrade over time due to repeated surges, and in extreme cases, it can fail short-circuit or open-circuit, necessitating replacement.

  10. Are there any safety considerations when using MOV-20D221K?

    • Users should ensure that MOV-20D221K is properly rated for the application, and proper overcurrent protection should be provided to prevent thermal runaway in case of sustained overvoltage conditions.