Littelfuse Inc.
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V275LC40APX10
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V275LC40APX10

Product Overview

  • Category: Varistor
  • Use: Surge protection
  • Characteristics: High energy absorption, fast response time
  • Package: Axial leaded
  • Essence: Protects electronic circuits from voltage surges
  • Packaging/Quantity: Bulk packaging, 100 pieces per pack

Specifications

  • Voltage Rating: 275V
  • Peak Current: 4kA
  • Energy Absorption: 40J
  • Operating Temperature: -40°C to +85°C
  • Dimensions: 7mm diameter, 10mm length

Detailed Pin Configuration

  • Pin 1: Anode
  • Pin 2: Cathode

Functional Features

  • Fast response to transient over-voltage conditions
  • High energy absorption capability
  • Reliable protection for sensitive electronic components

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited peak current handling compared to some alternatives
  • Sensitive to prolonged over-voltage conditions

Working Principles

The V275LC40APX10 varistor operates by utilizing a non-linear voltage-dependent resistance. When subjected to a surge in voltage, the varistor conducts current, diverting excess energy away from the protected circuit.

Detailed Application Field Plans

  • Consumer electronics
  • Industrial control systems
  • Telecommunications equipment
  • Power supplies

Detailed and Complete Alternative Models

  • V130LA20A: Lower voltage rating, higher peak current
  • V320LA40B: Higher voltage rating, similar energy absorption

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de V275LC40APX10 en soluciones técnicas

  1. What is V275LC40APX10?

    • V275LC40APX10 is a type of varistor, also known as a voltage-dependent resistor, used to protect electrical and electronic devices from overvoltage conditions.

  2. What is the maximum voltage rating for V275LC40APX10?

    • The maximum voltage rating for V275LC40APX10 is 275V.

  3. What is the peak current capability of V275LC40APX10?

    • The peak current capability of V275LC40APX10 is typically around 4500A.

  4. How does V275LC40APX10 provide overvoltage protection?

    • V275LC40APX10 operates by rapidly changing its resistance in response to changes in voltage, effectively diverting excess current away from sensitive components.

  5. What are the typical applications for V275LC40APX10?

    • V275LC40APX10 is commonly used in power supplies, industrial equipment, telecommunications systems, and consumer electronics to protect against transient voltage spikes.

  6. What is the response time of V275LC40APX10?

    • The response time of V275LC40APX10 is very fast, typically in the nanosecond range, providing quick protection against voltage surges.

  7. Can V275LC40APX10 be used in outdoor environments?

    • Yes, V275LC40APX10 is designed to withstand outdoor conditions and can be used in outdoor applications with appropriate housing and protection.

  8. What is the operating temperature range for V275LC40APX10?

    • V275LC40APX10 has an operating temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  9. Is V275LC40APX10 RoHS compliant?

    • Yes, V275LC40APX10 is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring it meets environmental standards.

  10. How should V275LC40APX10 be installed in a circuit?

    • V275LC40APX10 should be connected in parallel with the circuit or component to be protected, ensuring that it can shunt excess voltage away from sensitive components.