Littelfuse Inc.
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V320LA40CPX810

V320LA40CPX810

Product Overview

Category

The V320LA40CPX810 belongs to the category of varistors, which are electronic components used to protect circuits from overvoltage conditions.

Use

It is used to suppress transient voltage spikes and limit the voltage that can appear across an electronic or electrical device.

Characteristics

  • Voltage Rating: 320V
  • Peak Current: 10kA
  • Package Type: Radial Lead
  • Essence: Metal Oxide Varistor (MOV)
  • Packaging/Quantity: Typically available in tape and reel packaging with varying quantities.

Specifications

  • Maximum Allowable Voltage: 320V
  • Clamping Voltage: 650V
  • Peak Current Capability: 10,000A
  • Operating Temperature Range: -40°C to +85°C
  • Lead Material: Tin-plated Copper

Detailed Pin Configuration

The V320LA40CPX810 typically has two radial leads for connection to the circuit. The pin configuration is as follows: 1. Pin 1: Anode 2. Pin 2: Cathode

Functional Features

  • Fast response time to transient voltage spikes
  • High energy absorption capability
  • Reliable protection against overvoltage conditions
  • Stable performance over a wide temperature range

Advantages and Disadvantages

Advantages

  • Effective protection of sensitive electronic components
  • Wide operating temperature range
  • High peak current capability

Disadvantages

  • Limited lifespan under repeated high-energy transient events
  • Requires proper sizing and coordination with other protective devices for comprehensive circuit protection

Working Principles

The V320LA40CPX810 operates based on the principle of varistor action, where its resistance decreases as the voltage across it increases. When subjected to a transient overvoltage condition, the varistor conducts and diverts the excess energy away from the protected circuit, thereby limiting the voltage across the circuit.

Detailed Application Field Plans

The V320LA40CPX810 is commonly used in various applications including: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the V320LA40CPX810 include: - V250LA40CPX810 - V385LA40CPX810 - V420LA40CPX810 - V300LA40CPX810

This diverse range of varistors provides options for different voltage ratings and peak current capabilities to suit specific application requirements.

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  1. What is the V320LA40CPX810?

    • The V320LA40CPX810 is a metal oxide varistor (MOV) that is commonly used for transient voltage suppression in electronic circuits.

  2. What are the key specifications of the V320LA40CPX810?

    • The V320LA40CPX810 has a maximum AC voltage of 200V, a maximum DC voltage of 250V, and a peak current of 6500A.

  3. How does the V320LA40CPX810 provide transient voltage suppression?

    • The V320LA40CPX810 operates by clamping excessive voltage levels to protect sensitive electronic components from damage caused by transient voltage spikes.

  4. In what applications is the V320LA40CPX810 commonly used?

    • The V320LA40CPX810 is frequently employed in power supplies, industrial equipment, telecommunications devices, and consumer electronics to safeguard against voltage surges.

  5. What is the operating temperature range of the V320LA40CPX810?

    • The V320LA40CPX810 is designed to operate within a temperature range of -40°C to 85°C.

  6. How is the V320LA40CPX810 installed in a circuit?

    • The V320LA40CPX810 is typically connected in parallel with the load or equipment to be protected, allowing it to divert excess voltage away from the sensitive components.

  7. What are the potential failure modes of the V320LA40CPX810?

    • The V320LA40CPX810 can fail due to prolonged exposure to overvoltage conditions, excessive current, or thermal stress, so it's important to monitor its condition regularly.

  8. Can the V320LA40CPX810 be replaced if it fails?

    • Yes, the V320LA40CPX810 can be replaced with a new unit if it becomes damaged or reaches the end of its service life.

  9. Are there any precautions to consider when using the V320LA40CPX810?

    • It's important to ensure proper grounding and to follow manufacturer guidelines for mounting and handling to maximize the effectiveness of the V320LA40CPX810.

  10. Where can I find more detailed technical information about the V320LA40CPX810?

    • Detailed technical specifications, application notes, and other resources for the V320LA40CPX810 can be found on the manufacturer's website or in the product datasheet.