Littelfuse Inc.
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TMOV20RP385EL1B1
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TMOV20RP385EL1B1 Encyclopedia Entry

Product Overview

Category

The TMOV20RP385EL1B1 belongs to the category of surge protection devices.

Use

It is used to protect electrical and electronic equipment from voltage surges and transients.

Characteristics

  • Voltage Rating: 385VAC
  • Peak Surge Current: 20kA
  • Package: Radial leaded disc
  • Essence: Varistor with integrated thermal disconnect
  • Packaging/Quantity: Typically packaged in reels or bulk quantities for industrial use

Specifications

  • Voltage Rating: 385VAC
  • Peak Surge Current: 20,000A
  • Operating Temperature Range: -40°C to +85°C
  • Capacitance: 180pF

Detailed Pin Configuration

The TMOV20RP385EL1B1 has a radial leaded disc package with two leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Connection point for one end of the varistor element - Pin 2: Connection point for the other end of the varistor element

Functional Features

  • Surge Protection: Provides reliable protection against voltage surges and transients.
  • Thermal Disconnect: Integrated thermal disconnect feature ensures safe operation under fault conditions.
  • Fast Response Time: Rapidly responds to transient voltage spikes to safeguard connected equipment.

Advantages and Disadvantages

Advantages

  • High surge current handling capability
  • Compact design for easy integration into various applications
  • Integrated thermal disconnect for added safety

Disadvantages

  • Limited to specific voltage ratings and peak surge currents
  • Requires periodic testing and replacement to ensure continued protection

Working Principles

The TMOV20RP385EL1B1 utilizes metal oxide varistor (MOV) technology to suppress transient voltage spikes. When a surge occurs, the varistor rapidly changes its impedance to divert excess energy away from the protected equipment. The integrated thermal disconnect ensures that in the event of a sustained overvoltage condition, the varistor disconnects from the circuit to prevent overheating and potential hazards.

Detailed Application Field Plans

The TMOV20RP385EL1B1 is suitable for a wide range of applications, including: - Industrial control systems - Power distribution panels - Telecommunication equipment - Renewable energy systems - Consumer electronics

Detailed and Complete Alternative Models

  • TMOV25RP420E: Voltage Rating - 420VAC, Peak Surge Current - 25kA
  • TMOV34RP510M: Voltage Rating - 510VAC, Peak Surge Current - 34kA
  • TMOV50RP625ML: Voltage Rating - 625VAC, Peak Surge Current - 50kA

In conclusion, the TMOV20RP385EL1B1 surge protection device offers reliable protection against voltage surges and transients, making it an essential component for safeguarding sensitive electrical and electronic equipment across various industries.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением TMOV20RP385EL1B1 в технических решениях.

  1. What is the TMOV20RP385EL1B1?

    • The TMOV20RP385EL1B1 is a type of metal oxide varistor (MOV) that provides overvoltage protection in electrical circuits.

  2. What are the key features of TMOV20RP385EL1B1?

    • The TMOV20RP385EL1B1 offers high surge current capability, low leakage current, and fast response time for effective overvoltage protection.

  3. How does TMOV20RP385EL1B1 provide overvoltage protection?

    • TMOV20RP385EL1B1 suppresses excessive voltage by diverting it away from sensitive components in the circuit, thereby preventing damage.

  4. What are the typical applications of TMOV20RP385EL1B1?

    • TMOV20RP385EL1B1 is commonly used in power supplies, industrial equipment, telecommunications systems, and other electronic devices to safeguard against voltage spikes.

  5. What is the maximum operating voltage of TMOV20RP385EL1B1?

    • The TMOV20RP385EL1B1 has a maximum operating voltage of 385V AC.

  6. How is TMOV20RP385EL1B1 installed in a circuit?

    • TMOV20RP385EL1B1 can be installed across the input terminals of the device or equipment requiring overvoltage protection.

  7. What is the lifespan of TMOV20RP385EL1B1?

    • The TMOV20RP385EL1B1 has a long operational lifespan when used within its specified parameters, typically lasting for many years.

  8. Can TMOV20RP385EL1B1 be used in outdoor applications?

    • Yes, TMOV20RP385EL1B1 is suitable for outdoor use as it is designed to withstand environmental factors such as temperature variations and humidity.

  9. Does TMOV20RP385EL1B1 require regular maintenance?

    • TMOV20RP385EL1B1 is maintenance-free under normal operating conditions, but periodic inspection is recommended to ensure its continued effectiveness.

  10. Where can I purchase TMOV20RP385EL1B1?

    • TMOV20RP385EL1B1 can be purchased from authorized distributors or directly from the manufacturer.