Littelfuse Inc.
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V250LT40BP
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V250LT40BP

Product Overview

Category

The V250LT40BP belongs to the category of surge protection devices.

Use

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

Characteristics

  • High surge current capability
  • Fast response time
  • Low clamping voltage
  • Compact design

Package

The V250LT40BP is typically available in a standard surface mount package.

Essence

The essence of the V250LT40BP lies in its ability to divert excess voltage away from sensitive electronic components, thereby safeguarding them from damage.

Packaging/Quantity

The V250LT40BP is usually packaged in reels or trays and is available in varying quantities depending on the manufacturer.

Specifications

  • Maximum Continuous Operating Voltage: 250V
  • Peak Surge Current: 40A
  • Clamping Voltage: 395V
  • Response Time: <5ns
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The V250LT40BP typically has two pins for surface mount installation. The pin configuration may vary slightly based on the manufacturer's specifications.

Functional Features

  • Bi-directional protection
  • Low leakage current
  • High surge handling capacity
  • Robust construction for reliability

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • Suitable for a wide range of applications
  • Compact and easy to install

Disadvantages

  • May require periodic replacement after significant surge events
  • Limited to specific voltage and current ratings

Working Principles

The V250LT40BP operates on the principle of diverting excess voltage to ground when a surge event occurs. It utilizes a combination of metal oxide varistors and other protective components to absorb and dissipate the surge energy.

Detailed Application Field Plans

The V250LT40BP is commonly used in various applications including: - Power distribution systems - Telecommunication equipment - Industrial automation - Consumer electronics - Renewable energy systems

Detailed and Complete Alternative Models

Some alternative models to the V250LT40BP include: - V130LA20A - V275LA20AP - V320LA10CP - V420LA10CP

In conclusion, the V250LT40BP surge protection device offers reliable and efficient protection against voltage surges and transients, making it an essential component in safeguarding electronic equipment and systems across diverse industries.

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10 domande e risposte comuni relative all'applicazione di V250LT40BP nelle soluzioni tecniche

  1. What is V250LT40BP?

    • V250LT40BP is a type of varistor, also known as a voltage-dependent resistor, which is commonly used to protect electrical and electronic devices from transient overvoltage conditions.

  2. How does V250LT40BP work?

    • V250LT40BP varistors work by rapidly changing resistance in response to changes in applied voltage, effectively diverting excess current away from sensitive components and preventing damage.

  3. What are the typical applications of V250LT40BP?

    • V250LT40BP varistors are commonly used in surge protection devices, power supplies, industrial equipment, and consumer electronics to safeguard against voltage spikes and surges.

  4. What are the key specifications of V250LT40BP?

    • The V250LT40BP varistor typically has a maximum continuous voltage rating of 250V, a peak current capability of 10kA, and an energy absorption capacity of 360J.

  5. How should V250LT40BP be installed in a circuit?

    • V250LT40BP varistors should be connected in parallel with the load or device to be protected, ensuring that they can quickly respond to any overvoltage events.

  6. What are the temperature and environmental considerations for V250LT40BP?

    • V250LT40BP varistors are designed to operate within a specified temperature range, typically between -40°C to +85°C, and may have specific humidity and altitude limitations.

  7. Are there any reliability or lifespan considerations for V250LT40BP?

    • V250LT40BP varistors have a finite lifespan and may degrade over time with repeated exposure to overvoltage events, so periodic testing and replacement may be necessary in critical applications.

  8. Can V250LT40BP be used in combination with other protective devices?

    • Yes, V250LT40BP varistors can be used in conjunction with fuses, circuit breakers, and other protective devices to provide comprehensive overvoltage protection in complex systems.

  9. What are the potential failure modes of V250LT40BP?

    • V250LT40BP varistors can fail due to prolonged exposure to high voltage, excessive current, or mechanical stress, leading to reduced protection capability or even catastrophic failure.

  10. Where can I find detailed technical information and datasheets for V250LT40BP?

    • Detailed technical information, including datasheets and application notes, for V250LT40BP varistors can be obtained from the manufacturer's website or authorized distributors.