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V275LU40APX2855

V275LU40APX2855 Encyclopedia Entry

Product Overview

Category

The V275LU40APX2855 belongs to the category of varistors, which are electronic components used to protect circuits from overvoltage conditions.

Use

This varistor is commonly used in electronic circuits to suppress voltage spikes and transient surges, thereby safeguarding sensitive components from damage.

Characteristics

  • Voltage Rating: 275V
  • Maximum Allowable Voltage: 350V
  • Peak Current Capability: 4500A
  • Operating Temperature Range: -40°C to +85°C
  • Response Time: <25ns
  • Leakage Current: <1μA
  • Energy Absorption: 40J
  • Package Type: Axial leaded
  • Essence: Zinc oxide-based ceramic material
  • Packaging/Quantity: Typically packaged in reels or bulk quantities

Specifications

  • Nominal Diameter: 7mm
  • Varistor Voltage: 275V ±10%
  • Clamping Voltage: 710V
  • Peak Current: 4500A
  • Capacitance: <1000pF

Detailed Pin Configuration

The V275LU40APX2855 varistor has a standard axial lead configuration with two leads for easy integration into circuit designs.

Functional Features

  • Transient Voltage Suppression: Effectively clamps excessive voltage levels to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage transients ensures minimal impact on the circuit.
  • High Energy Absorption: Capable of dissipating significant surge energy without degradation.

Advantages and Disadvantages

Advantages

  • Reliable overvoltage protection
  • Fast response time
  • High energy absorption capacity

Disadvantages

  • Limited to specific voltage ratings
  • Non-linear response to voltage changes

Working Principles

The V275LU40APX2855 operates based on the principle of nonlinear resistance, where its resistance decreases as the voltage across it increases. This allows it to divert excess current away from sensitive components during overvoltage events.

Detailed Application Field Plans

This varistor is widely used in various electronic applications, including: - Power supplies - Telecommunications equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • V130LA20AP: 130V varistor with similar characteristics
  • V320LA40BP: 320V varistor with higher voltage rating
  • V150LA10A: 150V varistor with lower voltage rating

In conclusion, the V275LU40APX2855 varistor offers reliable overvoltage protection with fast response times, making it suitable for a wide range of electronic applications.

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  1. What is V275LU40APX2855?

    • V275LU40APX2855 is a type of varistor, also known as a voltage-dependent resistor, which is used to protect electronic circuits from overvoltage conditions.

  2. How does V275LU40APX2855 work?

    • V275LU40APX2855 works by changing its resistance in response to changes in voltage. When the voltage exceeds a certain threshold, the varistor conducts current and shunts the excess voltage away from the protected circuit.

  3. What are the typical applications of V275LU40APX2855?

    • V275LU40APX2855 is commonly used in surge protection devices, power supplies, industrial equipment, and telecommunications systems to safeguard against transient voltage spikes.

  4. What are the key specifications of V275LU40APX2855?

    • The key specifications of V275LU40APX2855 include its maximum voltage rating, energy absorption capability, response time, and operating temperature range.

  5. How should V275LU40APX2855 be connected in a circuit?

    • V275LU40APX2855 should be connected in parallel with the circuit or device to be protected, ensuring that it can divert excess voltage away from sensitive components.

  6. What are the advantages of using V275LU40APX2855 in technical solutions?

    • The advantages of using V275LU40APX2855 include its ability to provide reliable overvoltage protection, fast response time, and robust performance in demanding environments.

  7. Are there any limitations or considerations when using V275LU40APX2855?

    • It's important to consider factors such as the varistor's aging characteristics, derating with temperature, and potential failure modes when integrating V275LU40APX2855 into a design.

  8. Can V275LU40APX2855 be replaced with other varistors in a circuit?

    • While it's possible to substitute V275LU40APX2855 with similar varistors, it's crucial to ensure that the replacement meets the required voltage ratings and performance specifications.

  9. How can V275LU40APX2855 contribute to improving system reliability?

    • By providing effective overvoltage protection, V275LU40APX2855 helps prevent damage to sensitive components, thereby enhancing the overall reliability of the system.

  10. Where can I find detailed technical documentation for V275LU40APX2855?

    • Detailed technical documentation for V275LU40APX2855, including datasheets and application notes, can typically be obtained from the manufacturer's website or authorized distributors.