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P4KE47A
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P4KE47A - Product Overview

Introduction

P4KE47A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used to protect sensitive electronic components from voltage spikes and transients. This entry provides an overview of P4KE47A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protecting electronic circuits from voltage spikes and transients
  • Characteristics: Fast response time, low clamping voltage, high surge capability
  • Package: DO-41
  • Essence: Silicon TVS diode
  • Packaging/Quantity: Available in reels or bulk packaging, quantity varies by supplier

Specifications

  • Voltage - Reverse Standoff (Typ): 40.5V
  • Voltage - Breakdown (Min): 45.0V
  • Clamping Voltage (Max) @ Ipp: 65.3V
  • Peak Pulse Current: 6.5A
  • Capacitance @ Frequency: 150pF @ 1MHz
  • Power Dissipation (Max): 400W

Detailed Pin Configuration

P4KE47A follows the standard DO-41 package configuration with two leads.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level.
  • Fast Response Time: Rapid reaction to voltage spikes, protecting downstream components.
  • High Surge Capability: Can withstand large surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • Compact and easy to integrate into circuit designs

Disadvantages

  • Clamping voltage may be higher than some alternative models
  • Limited to unidirectional suppression

Working Principles

P4KE47A operates based on the principle of avalanche breakdown. When a voltage spike occurs, the diode rapidly conducts, diverting excess current away from sensitive components and limiting the voltage across the protected circuit.

Detailed Application Field Plans

P4KE47A finds applications in various electronic systems, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to P4KE47A include: - P4KE6.8A - P4KE10A - P4KE18A - P4KE33A

These alternative models offer similar transient voltage suppression capabilities with varying breakdown voltages and power dissipation ratings.

In conclusion, P4KE47A is a vital component in safeguarding electronic circuits from voltage transients, offering fast response times and high surge capability. Its compact design and effectiveness make it a popular choice in diverse applications, despite some limitations in clamping voltage and unidirectional suppression.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de P4KE47A en soluciones técnicas

  1. What is P4KE47A?

    • P4KE47A is a type of transient voltage suppressor diode used to protect electronic circuits from voltage spikes and transients.

  2. How does P4KE47A work?

    • P4KE47A works by diverting excessive voltage away from sensitive components in a circuit, thereby protecting them from damage.

  3. What are the typical applications of P4KE47A?

    • P4KE47A is commonly used in power supplies, automotive electronics, industrial equipment, and telecommunications systems to safeguard against voltage surges.

  4. What is the maximum voltage rating for P4KE47A?

    • The maximum voltage rating for P4KE47A is typically 47 volts.

  5. What is the peak pulse power handling capability of P4KE47A?

    • P4KE47A can handle peak pulse power levels of several kilowatts, making it suitable for protecting sensitive components from high-energy transients.

  6. How should P4KE47A be connected in a circuit?

    • P4KE47A should be connected in parallel with the component or circuit that needs protection, with proper attention to polarity and current-handling capabilities.

  7. What are the temperature considerations for P4KE47A?

    • P4KE47A operates within a specified temperature range, typically between -55°C to 175°C, ensuring reliable performance in various environments.

  8. Are there any specific mounting or layout requirements for P4KE47A?

    • It is important to follow recommended PCB layout guidelines and ensure proper heat dissipation for optimal performance of P4KE47A.

  9. Can P4KE47A be used for surge protection in consumer electronics?

    • Yes, P4KE47A can be employed in surge protection circuits for consumer electronics such as TVs, computers, and home appliances.

  10. What are the key differences between P4KE47A and other transient voltage suppressors?

    • P4KE47A offers specific voltage clamping characteristics and energy absorption capabilities, distinguishing it from other TVS diodes in transient protection applications.