Littelfuse Inc.
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V250LTX40B
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V250LTX40B Product Overview

Introduction

The V250LTX40B is a versatile electronic component designed for use in various applications. This entry provides an in-depth overview of the product, including its category, use, characteristics, packaging, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Component
  • Use: Protection against voltage transients
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: Axial leaded package
  • Essence: Transient Voltage Suppressor (TVS) diode
  • Packaging/Quantity: Available in reels or bulk packaging, quantity varies based on supplier

Specifications

  • Voltage Rating: 250V
  • Peak Pulse Power: 400W
  • Operating Temperature Range: -55°C to +175°C
  • Breakdown Voltage: 278V
  • Clamping Voltage: 431V at 1A
  • Maximum Reverse Leakage Current: 1μA at 200V
  • RoHS Compliant: Yes

Detailed Pin Configuration

The V250LTX40B features an axial leaded package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage transients by diverting excessive current away from sensitive components.
  • Fast Response Time: Rapidly responds to transient events, safeguarding connected circuits.
  • High Surge Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • RoHS compliant

Disadvantages

  • Clamping voltage may be relatively high for some applications
  • Requires careful consideration of placement within circuits to maximize effectiveness

Working Principles

The V250LTX40B operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when subjected to voltage transients, thereby protecting downstream components.

Detailed Application Field Plans

The V250LTX40B finds application in various fields, including: - Telecommunications: Protects communication equipment from lightning-induced surges - Automotive Electronics: Safeguards sensitive automotive electronics from voltage spikes - Industrial Control Systems: Provides surge protection for control systems in industrial environments - Consumer Electronics: Used in power supply and signal line protection for consumer electronic devices

Detailed and Complete Alternative Models

  • V130LA20A: Similar TVS diode with lower voltage rating
  • P6KE440CA: TVS diode with higher peak pulse power handling capability
  • 1.5KE18CA: TVS diode with different package type and characteristics

In conclusion, the V250LTX40B is a reliable transient voltage suppressor offering effective protection against voltage transients across various applications. Its high surge capability, fast response time, and RoHS compliance make it a valuable component in electronic circuit protection.

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  1. What is the V250LTX40B?

    • The V250LTX40B is a high-performance electronic component, specifically a varistor, designed to protect electrical circuits from overvoltage conditions.

  2. What are the key features of the V250LTX40B?

    • The V250LTX40B offers high surge current capability, low leakage current, and excellent energy absorption characteristics, making it suitable for various technical solutions.

  3. How does the V250LTX40B protect electrical circuits?

    • The V250LTX40B acts as a voltage-dependent resistor, rapidly conducting excess voltage away from sensitive components, thereby safeguarding the circuit.

  4. In what applications can the V250LTX40B be used?

    • The V250LTX40B is commonly employed in power supplies, industrial equipment, automotive electronics, and telecommunications systems to provide overvoltage protection.

  5. What is the maximum voltage rating of the V250LTX40B?

    • The V250LTX40B has a maximum voltage rating of [insert voltage rating here], ensuring reliable protection against high voltage transients.

  6. Does the V250LTX40B require any special mounting considerations?

    • Yes, the V250LTX40B should be mounted securely to ensure proper heat dissipation and electrical connection.

  7. What is the typical response time of the V250LTX40B during an overvoltage event?

    • The V250LTX40B exhibits a rapid response time, clamping the voltage within nanoseconds to protect the circuitry.

  8. Can the V250LTX40B be used in outdoor or harsh environments?

    • Yes, the V250LTX40B is designed to withstand harsh environmental conditions, making it suitable for outdoor and industrial applications.

  9. Are there any recommended test procedures for verifying the performance of the V250LTX40B?

    • Yes, manufacturers typically provide test procedures to verify the clamping voltage, surge current capability, and other performance parameters of the V250LTX40B.

  10. Where can I find detailed technical specifications and application notes for the V250LTX40B?

    • Detailed technical specifications and application notes for the V250LTX40B can be found in the product datasheet provided by the manufacturer or on their official website.