Bourns Inc.
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MOV-20D470K
צפה בפרטים DataSheets

MOV-20D470K

Product Overview

Category: Electronic Component
Use: Surge Protection
Characteristics: Metal Oxide Varistor (MOV)
Package: Radial Lead
Essence: Protects electronic devices from voltage surges
Packaging/Quantity: 100 pieces per pack

Specifications

  • Voltage Rating: 470V
  • Peak Current: 20kA
  • Maximum Allowable Voltage: 615V
  • Energy Absorption: 360J
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MOV-20D470K has a radial lead package with two leads for easy installation on circuit boards. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Provides protection against transient voltage spikes
  • Fast response time to divert excess current away from sensitive components
  • High energy absorption capability

Advantages and Disadvantages

Advantages: - Effective surge protection for electronic equipment - Wide operating temperature range - Compact and easy to install

Disadvantages: - Limited lifespan after repeated exposure to surges - May degrade over time with multiple surge events

Working Principles

The MOV-20D470K operates based on the metal oxide varistor principle, where it exhibits a high resistance at normal operating voltage but rapidly switches to a low resistance state when subjected to a transient voltage surge. This allows it to divert excess current away from the protected circuit.

Detailed Application Field Plans

The MOV-20D470K is commonly used in various electronic devices and systems, including: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • MOV-14D471K: Similar specifications with a slightly lower voltage rating
  • MOV-07D471K: Lower voltage and energy absorption rating suitable for less demanding applications
  • MOV-20D560K: Higher voltage rating for applications requiring greater surge protection

In conclusion, the MOV-20D470K is a reliable surge protection component with high energy absorption and fast response time, making it suitable for a wide range of electronic applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של MOV-20D470K בפתרונות טכניים

  1. What is MOV-20D470K?

    • MOV-20D470K is a metal oxide varistor (MOV) with a voltage rating of 20V and a peak current of 470A.

  2. Where can MOV-20D470K be used in technical solutions?

    • MOV-20D470K can be used in surge protection applications such as power supplies, industrial equipment, and electronic devices to protect against voltage spikes and transient overvoltage conditions.

  3. How does MOV-20D470K provide surge protection?

    • MOV-20D470K clamps the voltage by conducting when the voltage exceeds its threshold, diverting the excess energy away from the protected circuit.

  4. What are the key specifications of MOV-20D470K?

    • The key specifications include a maximum allowable voltage of 20V, peak current handling capability of 470A, and energy absorption capacity.

  5. Are there any precautions to consider when using MOV-20D470K?

    • It's important to ensure that the operating voltage does not exceed the maximum allowable voltage of 20V and to properly size the MOV for the application.

  6. Can MOV-20D470K be used in both AC and DC circuits?

    • Yes, MOV-20D470K can be used in both AC and DC circuits for surge protection.

  7. What is the typical lifespan of MOV-20D470K?

    • The lifespan of MOV-20D470K depends on the magnitude and frequency of surges it encounters, but it is designed to provide long-term protection under normal operating conditions.

  8. Is MOV-20D470K sensitive to temperature variations?

    • MOV-20D470K's performance can be affected by temperature, so it's important to consider the operating temperature range and choose appropriate derating factors if necessary.

  9. Can MOV-20D470K be used in outdoor or harsh environments?

    • MOV-20D470K is available in versions designed for outdoor and harsh environments, but it's important to select the appropriate model with the right environmental ratings.

  10. Are there alternative components to consider alongside MOV-20D470K for comprehensive surge protection?

    • In addition to MOV-20D470K, other components such as gas discharge tubes (GDTs), transient voltage suppressors (TVS diodes), and capacitors can be used in conjunction to provide comprehensive surge protection for technical solutions.