Littelfuse Inc.
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V140LS20CPX340
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V140LS20CPX340 Encyclopedia Entry

Product Overview

The V140LS20CPX340 belongs to the category of transient voltage suppressor (TVS) diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transients. The V140LS20CPX340 is designed to provide robust protection against overvoltage events, making it suitable for a wide range of applications. Its characteristics include high surge capability, low clamping voltage, and fast response time. The diode is typically packaged in a compact, surface-mount package and is available in various quantities to suit different production needs.

Specifications

  • Voltage Rating: 140V
  • Peak Pulse Current: 340A
  • Package Type: SMC (DO-214AB)
  • Quantity per Package: Typically available in reels of 1500 units

Detailed Pin Configuration

The V140LS20CPX340 TVS diode typically features a standard SMC (DO-214AB) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage spikes and transients by diverting excess current away from sensitive components.
  • Fast Response Time: Reacts quickly to overvoltage events, minimizing the risk of damage to connected devices.
  • High Surge Capability: Can handle large surge currents, enhancing the overall reliability of the protected circuit.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • Compact form factor

Disadvantages

  • Clamping voltage may not be as low as some alternative models
  • Limited to specific voltage and current ratings

Working Principles

The V140LS20CPX340 operates based on the principle of avalanche breakdown. When an overvoltage event occurs, the diode rapidly conducts excess current, effectively clamping the voltage across the protected circuit. This action helps prevent damage to sensitive components by diverting the surge energy away from them.

Detailed Application Field Plans

The V140LS20CPX340 is commonly used in various electronic systems and equipment, including: - Power supplies - Communication systems - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative TVS diode models that can be considered as alternatives to the V140LS20CPX340 include: - Model 1: V130LS20APX285 - Voltage Rating: 130V - Peak Pulse Current: 285A - Model 2: P6SMB170CA - Voltage Rating: 170V - Peak Pulse Current: 600W

In summary, the V140LS20CPX340 transient voltage suppressor diode offers effective protection against overvoltage events, making it a valuable component in various electronic applications.

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Énumérez 10 questions et réponses courantes liées à l'application de V140LS20CPX340 dans les solutions techniques

  1. What is V140LS20CPX340?

    • V140LS20CPX340 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 V140LS20CPX340 work?

    • V140LS20CPX340 works by changing its resistance in response to changes in voltage. When the voltage exceeds a certain threshold, the varistor conducts current and diverts the excess voltage away from the protected circuit.

  3. What are the typical applications of V140LS20CPX340?

    • V140LS20CPX340 is commonly used in surge protection devices, power supplies, industrial equipment, and telecommunications systems to safeguard against transient voltage spikes.

  4. What is the maximum voltage rating of V140LS20CPX340?

    • The maximum voltage rating of V140LS20CPX340 is typically 140V.

  5. What is the energy absorption capability of V140LS20CPX340?

    • V140LS20CPX340 has a high energy absorption capability, making it suitable for protecting sensitive electronic components from large surges.

  6. How should V140LS20CPX340 be connected in a circuit?

    • V140LS20CPX340 should be connected in parallel with the circuit or device to be protected, so that it can shunt excess voltage away from the load.

  7. Can V140LS20CPX340 be used in outdoor applications?

    • Yes, V140LS20CPX340 is designed to withstand outdoor environments and can be used in outdoor applications where surge protection is required.

  8. Is V140LS20CPX340 reusable after absorbing a surge?

    • No, once V140LS20CPX340 has absorbed a surge and conducted current, it may need to be replaced, as its protective capabilities can degrade over time.

  9. What are the temperature limitations of V140LS20CPX340?

    • V140LS20CPX340 is typically rated for a wide temperature range, but it's important to check the datasheet for specific temperature limitations.

  10. Are there any special considerations for integrating V140LS20CPX340 into a circuit?

    • It's important to consider the response time, clamping voltage, and current-handling capabilities of V140LS20CPX340 when integrating it into a circuit to ensure effective surge protection.