Littelfuse Inc.
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TMOV20R510M
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TMOV20R510M Encyclopedia Entry

Product Overview

The TMOV20R510M belongs to the category of metal oxide varistors (MOVs) and is commonly used for surge protection in electrical circuits. Its characteristics include high energy absorption capability, fast response time, and reliability. The package typically consists of a disc-shaped component with lead wires for connection. The essence of the TMOV20R510M lies in its ability to protect sensitive electronic devices from voltage surges. It is usually packaged in quantities suitable for industrial or commercial applications.

Specifications

  • Voltage Rating: 510V
  • Maximum Allowable Voltage: 320V
  • Peak Current Capability: 10kA
  • Operating Temperature Range: -40°C to 85°C
  • Lead Material: Tin-plated copper

Detailed Pin Configuration

The TMOV20R510M features two lead wires for connection. The pin configuration includes one input terminal and one output terminal, allowing for easy integration into circuit designs.

Functional Features

  • Surge Protection: Effectively clamps transient overvoltage to protect downstream components.
  • Fast Response Time: Rapidly responds to voltage surges, minimizing the risk of damage to connected equipment.
  • Reliability: Provides consistent performance over a wide range of operating conditions.

Advantages and Disadvantages

Advantages

  • High energy absorption capability
  • Fast response time
  • Reliable surge protection

Disadvantages

  • Limited to specific voltage ratings
  • Requires periodic testing for continued effectiveness

Working Principles

The TMOV20R510M operates based on the principle of varistor action, where its resistance decreases as the voltage across it increases. When subjected to a surge, the varistor rapidly conducts current, diverting the excess energy away from sensitive components.

Detailed Application Field Plans

The TMOV20R510M is commonly employed in various applications, including: - Power distribution systems - Industrial machinery - Telecommunications equipment - Consumer electronics

Detailed and Complete Alternative Models

  1. TMOV14S431K: A lower voltage rating alternative suitable for sensitive electronic devices.
  2. TMOV34S681M: A higher energy absorption alternative for industrial power systems.
  3. TMOV25S431M: An alternative with similar characteristics but different packaging options.

In conclusion, the TMOV20R510M serves as a reliable surge protection component with specific voltage ratings and high energy absorption capabilities. Its application spans across diverse industries, offering essential protection against transient overvoltages.

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  1. What is the TMOV20R510M?

    • The TMOV20R510M is a type of metal oxide varistor (MOV) that provides overvoltage protection in electrical circuits.

  2. What is the maximum voltage rating for TMOV20R510M?

    • The maximum voltage rating for TMOV20R510M is 510V AC.

  3. What is the maximum energy absorption capability of TMOV20R510M?

    • The TMOV20R510M has a maximum energy absorption capability of 20J.

  4. How does TMOV20R510M protect electrical circuits?

    • TMOV20R510M protects electrical circuits by clamping transient overvoltages to safe levels, thereby preventing damage to sensitive components.

  5. Can TMOV20R510M be used in both AC and DC circuits?

    • Yes, TMOV20R510M can be used in both AC and DC circuits.

  6. What is the operating temperature range for TMOV20R510M?

    • The operating temperature range for TMOV20R510M is -40°C to 85°C.

  7. Is TMOV20R510M suitable for surge protection in power supplies?

    • Yes, TMOV20R510M is suitable for surge protection in power supplies and other electronic equipment.

  8. Does TMOV20R510M require any additional heat sinking or cooling?

    • No, TMOV20R510M does not require additional heat sinking or cooling under normal operating conditions.

  9. What are the typical applications for TMOV20R510M?

    • Typical applications for TMOV20R510M include surge protection in industrial equipment, consumer electronics, and telecommunications systems.

  10. Is TMOV20R510M compliant with relevant safety standards?

    • Yes, TMOV20R510M is compliant with relevant safety standards such as UL and CSA.