Littelfuse Inc.
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TMOV20R460M
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TMOV20R460M

Product Overview

Category

The TMOV20R460M belongs to the category of metal oxide varistors (MOVs).

Use

It is used for surge protection in various electronic and electrical systems.

Characteristics

  • High energy absorption capacity
  • Fast response time
  • Wide operating temperature range
  • Long lifespan

Package

The TMOV20R460M is typically available in a cylindrical package.

Essence

The essence of TMOV20R460M lies in its ability to protect sensitive electronic components from voltage surges and transients.

Packaging/Quantity

It is commonly packaged in quantities suitable for industrial and commercial applications.

Specifications

  • Maximum Allowable Voltage: 460V
  • Peak Current Capability: 20kA
  • Operating Temperature Range: -40°C to 85°C
  • Nominal Varistor Voltage: 360V

Detailed Pin Configuration

The TMOV20R460M has a standard radial leaded configuration with two leads for easy integration into circuit boards.

Functional Features

  • Surge suppression
  • Overvoltage protection
  • Fast response to transient events

Advantages and Disadvantages

Advantages

  • Effective protection against voltage surges
  • Reliable performance
  • Wide operating temperature range

Disadvantages

  • Limited protection for sustained overvoltage conditions
  • Requires periodic replacement after absorbing high-energy surges

Working Principles

The TMOV20R460M operates based on the principle of nonlinear voltage-dependent resistance. When subjected to a surge or transient event, the varistor's resistance decreases, diverting excess current away from sensitive components.

Detailed Application Field Plans

The TMOV20R460M is widely used in: - Power distribution systems - Telecommunication equipment - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

  1. TMOV14S431K
  2. TMOV25S431K
  3. TMOV34S431K

These alternative models offer similar surge protection capabilities with varying voltage and current ratings.

In conclusion, the TMOV20R460M is a reliable metal oxide varistor designed to safeguard electronic and electrical systems from voltage surges and transients. Its robust characteristics and functional features make it an essential component in various applications, ensuring the longevity and reliability of sensitive equipment.

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10 سوال و پاسخ رایج مربوط به کاربرد TMOV20R460M در راه حل های فنی را فهرست کنید

  1. What is the TMOV20R460M?

    • The TMOV20R460M is a type of metal oxide varistor (MOV) that provides overvoltage protection in electrical circuits.

  2. What is the maximum voltage rating of the TMOV20R460M?

    • The TMOV20R460M has a maximum voltage rating of 460V AC.

  3. What is the maximum energy absorption capability of the TMOV20R460M?

    • The TMOV20R460M can absorb up to 20J of energy during transient voltage events.

  4. How does the TMOV20R460M protect electrical circuits?

    • The TMOV20R460M clamps excessive voltage and diverts surge currents away from sensitive components, protecting the circuit from damage.

  5. What are the typical applications for the TMOV20R460M?

    • The TMOV20R460M is commonly used in power supplies, industrial equipment, and home appliances to safeguard against voltage spikes and surges.

  6. What are the operating temperature and humidity ranges for the TMOV20R460M?

    • The TMOV20R460M typically operates within a temperature range of -40°C to 85°C and a humidity range of 0% to 95%.

  7. Does the TMOV20R460M require any additional protective components in a circuit?

    • The TMOV20R460M is self-protected and does not require additional protective components in most applications.

  8. Can the TMOV20R460M be used in both AC and DC circuits?

    • Yes, the TMOV20R460M is suitable for use in both AC and DC circuits.

  9. What is the response time of the TMOV20R460M during a voltage surge?

    • The TMOV20R460M responds rapidly to voltage surges, providing protection within nanoseconds.

  10. Is the TMOV20R460M compliant with relevant safety and performance standards?

    • Yes, the TMOV20R460M is designed and tested to meet industry standards for safety and performance, such as UL and CSA certifications.