Littelfuse Inc.
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V175LA20CPX2855
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V175LA20CPX2855 Encyclopedia Entry

Product Overview

Category

The V175LA20CPX2855 belongs to the category of varistors, which are electronic components used for voltage regulation and surge protection.

Use

It is primarily used to protect electronic circuits from overvoltage conditions by rapidly changing resistance as the applied voltage changes.

Characteristics

  • Voltage Regulation: The varistor can regulate voltage by altering its resistance in response to voltage changes.
  • Surge Protection: It provides protection against transient voltage spikes.
  • Fast Response Time: Capable of responding rapidly to voltage fluctuations.

Package

The V175LA20CPX2855 is typically available in a cylindrical package with leads for easy installation on circuit boards.

Essence

The essence of the V175LA20CPX2855 lies in its ability to safeguard electronic devices from voltage surges and transients.

Packaging/Quantity

It is commonly packaged in reels or trays, and the quantity per package varies based on the supplier.

Specifications

  • Voltage Rating: 175V
  • Peak Current: 4500A
  • Maximum Energy (10/1000μs): 85J
  • Operating Temperature Range: -40°C to +85°C
  • Lead Material: Tin-plated copper

Detailed Pin Configuration

The V175LA20CPX2855 has a standard radial lead configuration with two leads for easy soldering onto circuit boards.

Functional Features

  • Voltage Clamping: Provides precise clamping of voltage spikes to protect downstream components.
  • Transient Suppression: Effectively suppresses transient voltage spikes to prevent damage to sensitive electronics.
  • High Surge Current Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Fast response time
  • Wide operating temperature range

Disadvantages

  • Limited maximum energy absorption compared to some higher-rated varistors
  • Requires careful consideration of application voltage levels

Working Principles

The V175LA20CPX2855 operates based on the principle of voltage-dependent resistance. When the applied voltage exceeds the varistor's threshold, it rapidly decreases its resistance, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The V175LA20CPX2855 is commonly used in various applications, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the V175LA20CPX2855 include: - V130LA20CPX2855 - V250LA20CPX2855 - V300LA20CPX2855 - V385LA20CPX2855

In conclusion, the V175LA20CPX2855 varistor offers effective surge protection and voltage regulation for a wide range of electronic applications, making it an essential component in ensuring the reliability and longevity of electronic devices.

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Énumérez 10 questions et réponses courantes liées à l'application de V175LA20CPX2855 dans les solutions techniques

  1. What is the V175LA20CPX2855?

    • The V175LA20CPX2855 is a metal oxide varistor (MOV) that is commonly used for overvoltage protection in electrical and electronic circuits.

  2. What are the key specifications of the V175LA20CPX2855?

    • The V175LA20CPX2855 has a maximum AC voltage of 130V, a maximum DC voltage of 175V, and a peak current of 4500A.

  3. How does the V175LA20CPX2855 provide overvoltage protection?

    • The V175LA20CPX2855 acts as a voltage-dependent resistor, conducting current when the voltage exceeds a certain threshold, thereby diverting excess energy away from sensitive components.

  4. In what applications is the V175LA20CPX2855 commonly used?

    • The V175LA20CPX2855 is often used in power supplies, industrial equipment, telecommunications systems, and consumer electronics to protect against transient voltage spikes.

  5. What is the operating temperature range of the V175LA20CPX2855?

    • The V175LA20CPX2855 has an operating temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  6. How should the V175LA20CPX2855 be installed in a circuit?

    • The V175LA20CPX2855 should be connected in parallel with the circuit being protected, ensuring that it can quickly respond to overvoltage events.

  7. What are the potential failure modes of the V175LA20CPX2855?

    • The V175LA20CPX2855 can fail due to prolonged exposure to overvoltage conditions or excessive current, leading to reduced protection capability.

  8. Can the V175LA20CPX2855 be replaced if it fails?

    • Yes, the V175LA20CPX2855 can be replaced by desoldering the old component and soldering a new one in its place.

  9. Are there any special handling considerations for the V175LA20CPX2855?

    • It is important to avoid mechanical stress or excessive bending of the leads during installation to prevent damage to the varistor.

  10. Where can I find detailed technical specifications and application notes for the V175LA20CPX2855?

    • Detailed technical specifications and application notes for the V175LA20CPX2855 can be found in the manufacturer's datasheet and application guides, which are available on their official website.