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P4KE51A
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P4KE51A Encyclopedia Entry

Product Overview

P4KE51A is a transient voltage suppressor diode belonging to the category of electronic components used for voltage regulation and protection. It is commonly utilized in electronic circuits to protect sensitive components from voltage spikes and transients. The diode exhibits characteristics such as high surge capability, low clamping voltage, and fast response time. Typically, it is packaged in a small, cylindrical form with leads for easy integration into circuit boards. The essence of P4KE51A lies in its ability to divert excessive voltage away from sensitive components, thereby safeguarding them from damage. It is commonly available in packaging quantities suitable for both prototyping and mass production.

Specifications

  • Part Number: P4KE51A
  • Category: Transient Voltage Suppressor Diode
  • Voltage Rating: 51V
  • Power Dissipation: 400W
  • Package Type: DO-41
  • Operating Temperature Range: -55°C to 175°C
  • Storage Temperature Range: -55°C to 175°C

Detailed Pin Configuration

The P4KE51A diode features a standard DO-41 package with two leads. The anode lead is typically longer than the cathode lead, allowing for easy identification and installation on a circuit board.

Functional Features

  • Transient Voltage Suppression: P4KE51A effectively suppresses transient voltage spikes, diverting excess energy away from sensitive components.
  • Fast Response Time: The diode responds rapidly to voltage surges, providing quick protection to the connected circuitry.

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited to specific voltage ratings
  • Requires careful consideration of reverse leakage current in certain applications

Working Principles

P4KE51A operates based on the principle of avalanche breakdown. When a voltage spike occurs, the diode enters a state of rapid conduction, diverting the excess energy away from the protected circuitry. This action prevents the voltage from reaching levels that could potentially damage sensitive components.

Detailed Application Field Plans

P4KE51A finds extensive application in various electronic systems, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • P6KE51A: Similar transient voltage suppressor diode with higher power dissipation rating
  • 1.5KE51A: Transient voltage suppressor diode with different package type and characteristics suitable for specific applications

In conclusion, P4KE51A serves as a crucial component in electronic circuit protection, offering effective transient voltage suppression and fast response times. Its compact form factor and reliability make it a popular choice across diverse industries.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de P4KE51A en soluciones técnicas

  1. What is P4KE51A?

    • P4KE51A is a type of transient voltage suppressor diode, commonly used to protect electronic circuits from voltage spikes and transients.

  2. What are the key features of P4KE51A?

    • P4KE51A features a peak power dissipation of 400W, low leakage current, and fast response time to transient events.

  3. In what applications is P4KE51A typically used?

    • P4KE51A is commonly used in power supplies, automotive electronics, telecommunication equipment, and industrial control systems to protect sensitive components from voltage surges.

  4. How does P4KE51A provide protection against voltage spikes?

    • P4KE51A clamps the voltage across the circuit it is protecting by diverting excess current away from sensitive components, thereby preventing damage due to voltage spikes.

  5. What is the maximum clamping voltage of P4KE51A?

    • The maximum clamping voltage of P4KE51A is 82.4V at a peak pulse current of 10A.

  6. Can P4KE51A be used for overvoltage protection in DC power lines?

    • Yes, P4KE51A can be used to protect DC power lines from overvoltage events by shunting excess current to ground.

  7. What is the operating temperature range of P4KE51A?

    • P4KE51A has an operating temperature range of -55°C to 175°C, making it suitable for a wide range of environmental conditions.

  8. Are there any specific soldering or mounting considerations for P4KE51A?

    • P4KE51A should be mounted on a heat sink to dissipate heat during operation, and care should be taken to avoid excessive mechanical stress during soldering.

  9. Does P4KE51A require any additional external components for proper operation?

    • P4KE51A typically does not require additional external components for basic transient voltage suppression, but appropriate circuit design and layout are important for optimal performance.

  10. Where can I find detailed specifications and application notes for P4KE51A?

    • Detailed specifications and application notes for P4KE51A can be found in the datasheet provided by the manufacturer or on their official website.