Littelfuse Inc.
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V300LA20CPX2855
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V300LA20CPX2855

Product Overview

Category

The V300LA20CPX2855 belongs to the category of electronic components, specifically varistors.

Use

It is used to protect electronic circuits from overvoltage surges by rapidly changing resistance in response to voltage changes.

Characteristics

  • Fast response time
  • High energy absorption capability
  • Wide operating temperature range

Package

The V300LA20CPX2855 is typically available in a disc-shaped package with leads for easy installation on circuit boards.

Essence

The essence of the V300LA20CPX2855 lies in its ability to safeguard sensitive electronic components from voltage spikes.

Packaging/Quantity

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

Specifications

  • Maximum AC Voltage: 250V
  • Maximum DC Voltage: 320V
  • Clamping Voltage: 505V
  • Peak Current (8/20µs): 6kA
  • Energy (10/1000µs): 3J
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The V300LA20CPX2855 has two leads, typically denoted as Anode and Cathode. The pin configuration is as follows: - Anode (A) - Connected to the positive side of the circuit - Cathode (K) - Connected to the negative side of the circuit

Functional Features

  • Rapid response to voltage surges
  • Absorption of excess energy
  • Restoration of normal circuit operation after surge events

Advantages

  • Effective protection against voltage transients
  • Wide operating temperature range
  • Compact and easy to install

Disadvantages

  • Limited lifespan after multiple surge events
  • May require replacement after significant surges

Working Principles

The V300LA20CPX2855 operates based on the principle of voltage-dependent resistance. When the voltage across the varistor exceeds a certain threshold, its resistance decreases, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The V300LA20CPX2855 is commonly used in various electronic devices and systems, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • V130LA20CPX2855: Lower clamping voltage variant
  • V385LA20CPX2855: Higher energy absorption variant
  • V500LA20CPX2855: Higher peak current handling variant

In conclusion, the V300LA20CPX2855 varistor is an essential component for protecting electronic circuits from voltage surges, offering fast response times and high energy absorption capabilities. While it has limitations such as a limited lifespan after multiple surge events, its advantages make it a crucial element in ensuring the reliability and longevity of electronic systems.

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10 سوال و پاسخ رایج مربوط به کاربرد V300LA20CPX2855 در راه حل های فنی را فهرست کنید

  1. What is the V300LA20CPX2855?

    • The V300LA20CPX2855 is a metal oxide varistor (MOV) designed to protect electrical and electronic devices from voltage surges and transients.

  2. What are the key features of the V300LA20CPX2855?

    • The V300LA20CPX2855 features a high surge current capability, low leakage current, and fast response time to transient events.

  3. How does the V300LA20CPX2855 work in technical solutions?

    • When a voltage surge occurs, the V300LA20CPX2855 conducts current to divert the excess energy away from sensitive components, protecting them from damage.

  4. Where can the V300LA20CPX2855 be used in technical solutions?

    • The V300LA20CPX2855 can be used in power supplies, industrial equipment, telecommunications systems, and other applications where protection against voltage surges is necessary.

  5. What are the typical voltage and current ratings for the V300LA20CPX2855?

    • The V300LA20CPX2855 has a maximum continuous operating voltage of 300V and a peak current capability of 8/20µs.

  6. How should the V300LA20CPX2855 be installed in a circuit?

    • The V300LA20CPX2855 should be connected in parallel with the load or device to be protected, ensuring that it can shunt excess voltage when necessary.

  7. What are the environmental considerations for using the V300LA20CPX2855?

    • The V300LA20CPX2855 is designed to operate within specified temperature and humidity ranges, making it suitable for various environmental conditions.

  8. Are there any precautions to consider when using the V300LA20CPX2855?

    • It's important to ensure proper grounding and insulation coordination when integrating the V300LA20CPX2855 into a system to maximize its effectiveness.

  9. Can the V300LA20CPX2855 be replaced if it fails?

    • Yes, the V300LA20CPX2855 can be replaced if it experiences a significant surge event or reaches the end of its operational lifespan.

  10. Where can I find more detailed technical specifications for the V300LA20CPX2855?

    • Detailed technical specifications for the V300LA20CPX2855 can be found in the product datasheet provided by the manufacturer or distributor.