Littelfuse Inc.
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V140LA10A
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V140LA10A

Product Overview

Category

The V140LA10A belongs to the category of electronic components, specifically varistors.

Use

It is used to protect electrical circuits from overvoltage conditions by rapidly changing resistance when exposed to voltage surges.

Characteristics

  • Rapid change in resistance
  • High energy absorption capacity
  • Reliable protection against voltage spikes

Package

The V140LA10A is typically available in a disc-shaped package with leads for easy integration into circuit boards.

Essence

The essence of V140LA10A lies in its ability to safeguard sensitive electronic equipment from voltage transients.

Packaging/Quantity

It is commonly packaged in reels or trays and is available in varying quantities depending on the manufacturer.

Specifications

  • Maximum Allowable Voltage: 140V
  • Peak Current (8/20μs): 4500A
  • Energy (2ms): 3J
  • Operating Temperature Range: -40°C to +85°C
  • Capacitance: 1000pF

Detailed Pin Configuration

The V140LA10A typically has two leads for connection to the circuit. The pin configuration is as follows: 1. Lead 1: Connected to one end of the varistor element 2. Lead 2: Connected to the other end of the varistor element

Functional Features

  • Rapid response to voltage surges
  • High energy absorption capability
  • Stable performance over a wide temperature range

Advantages

  • Effective protection against voltage spikes
  • Wide operating temperature range
  • Compact and easy to integrate into circuits

Disadvantages

  • Limited lifespan under repeated high-energy transient events
  • May require additional circuitry for optimal performance in some applications

Working Principles

The V140LA10A operates based on the principle of voltage-dependent resistance. When the voltage across the varistor exceeds a certain threshold, its resistance decreases significantly, diverting the excess current away from the protected circuit.

Detailed Application Field Plans

The V140LA10A is commonly used in various electronic devices and systems, including: - Power supply units - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to V140LA10A include: - V130LA10A - V150LA10A - V140LA20A - V140LA05A

In conclusion, the V140LA10A varistor offers reliable protection against voltage surges and finds widespread use in diverse electronic applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של V140LA10A בפתרונות טכניים

  1. What is V140LA10A?

    • V140LA10A is a metal oxide varistor (MOV) component used for transient voltage suppression in electrical circuits.

  2. What are the key specifications of V140LA10A?

    • The V140LA10A has a maximum continuous voltage rating of 85V, a peak current capability of 4500A, and a clamping voltage of 175V at 100A.

  3. How does V140LA10A protect electronic equipment?

    • V140LA10A protects electronic equipment by diverting excessive voltage transients away from sensitive components, preventing damage due to overvoltage events.

  4. In what applications is V140LA10A commonly used?

    • V140LA10A is commonly used in power supplies, industrial equipment, telecommunications devices, and consumer electronics to safeguard against voltage surges.

  5. What is the operating temperature range of V140LA10A?

    • V140LA10A has an operating temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  6. How is V140LA10A installed in a circuit?

    • V140LA10A is typically connected in parallel with the load or equipment to be protected, providing a low-impedance path for transient currents.

  7. Can V140LA10A degrade over time?

    • Yes, like all MOVs, V140LA10A can degrade over time due to repeated exposure to transient events, so periodic testing and replacement may be necessary.

  8. What are the potential failure modes of V140LA10A?

    • V140LA10A can fail in short or open circuit mode when subjected to extreme overvoltage conditions or if it reaches the end of its operational lifespan.

  9. Are there any special considerations for designing with V140LA10A?

    • Designers should consider the energy absorption capability, response time, and thermal management when integrating V140LA10A into their circuits.

  10. Where can I purchase V140LA10A components?

    • V140LA10A components can be purchased from authorized distributors or directly from the manufacturer's website.