Littelfuse Inc.
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20KPA68A
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20KPA68A Product Overview

Introduction

The 20KPA68A is a high-power transient voltage suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides a comprehensive overview of the 20KPA68A, including its product details, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Components
  • Use: Protection against voltage transients
  • Characteristics: High power handling capability, fast response time, low clamping voltage
  • Package: Axial leaded package
  • Essence: Transient voltage suppression
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

  • Peak Pulse Power: 20,000 Watts
  • Standoff Voltage: 68V
  • Breakdown Voltage Range: 75.6V to 83.8V
  • Maximum Clamping Voltage: 109V at 34.5A
  • Operating Temperature Range: -55°C to +175°C
  • Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 20KPA68A TVS diode has an axial leaded package with two leads. The pin configuration includes: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage events to protect downstream components.
  • High Power Handling Capability: Capable of dissipating large amounts of transient energy.
  • Fast Response Time: Rapidly responds to transient voltage events to minimize damage to protected circuits.

Advantages and Disadvantages

Advantages

  • High power handling capability
  • Fast response time
  • Low clamping voltage

Disadvantages

  • Sensitive to reverse bias conditions
  • Requires careful consideration of layout and placement for optimal performance

Working Principles

The 20KPA68A operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly switches into its low impedance state, diverting the excess energy away from the protected circuitry and limiting the voltage across it.

Detailed Application Field Plans

The 20KPA68A is widely used in various applications requiring protection against transient voltage events, including: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • 20KPA Series: Includes various models with different standoff voltages and peak pulse powers, providing flexibility for different application requirements.
  • Other Manufacturers' Equivalents: Several manufacturers offer TVS diodes with similar specifications, such as the P6KE series from Vishay and the SMBJ series from Littelfuse.

In conclusion, the 20KPA68A TVS diode offers robust transient voltage protection for a wide range of electronic applications, with its high power handling capability, fast response time, and low clamping voltage making it a valuable component in safeguarding sensitive electronics.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 20KPA68A en soluciones técnicas

  1. What is 20KPA68A?

    • 20KPA68A is a transient voltage suppressor diode used to protect electronic circuits from overvoltage transients.

  2. What is the maximum peak pulse power of 20KPA68A?

    • The maximum peak pulse power of 20KPA68A is 20000 watts for a 10/1000μs waveform.

  3. What is the breakdown voltage of 20KPA68A?

    • The breakdown voltage of 20KPA68A is 68 volts.

  4. How does 20KPA68A protect electronic circuits?

    • 20KPA68A diverts excessive current away from sensitive components, preventing damage due to voltage spikes or transients.

  5. What are the typical applications of 20KPA68A?

    • Typical applications include surge protection in telecommunications equipment, industrial electronics, and automotive systems.

  6. What is the response time of 20KPA68A?

    • The response time of 20KPA68A is very fast, typically less than 1 nanosecond.

  7. Can 20KPA68A be used for high-speed data lines?

    • Yes, 20KPA68A is suitable for protecting high-speed data lines such as USB, HDMI, and Ethernet.

  8. Is 20KPA68A RoHS compliant?

    • Yes, 20KPA68A is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  9. What is the operating temperature range of 20KPA68A?

    • The operating temperature range of 20KPA68A is typically -55°C to 175°C.

  10. Does 20KPA68A require any special mounting considerations?

    • 20KPA68A should be mounted on a heat sink or metal plane for efficient heat dissipation during high-power operation.