Vishay Semiconductor Diodes Division
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P4SMA12A-E3/5A
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P4SMA12A-E3/5A

Introduction

The P4SMA12A-E3/5A is a product belonging to the category of TVS (Transient Voltage Suppressor) diodes. These diodes are designed to protect sensitive electronics from voltage spikes and transient surges. The P4SMA12A-E3/5A is widely used in various electronic devices and systems to safeguard them from voltage transients.

Basic Information Overview

  • Category: TVS Diode
  • Use: Protection against voltage spikes and transient surges
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: DO-214AC (SMA)
  • Essence: Safeguarding sensitive electronics
  • Packaging/Quantity: Available in reels with varying quantities

Specifications

  • Voltage - Reverse Standoff (Typ): 10.5V
  • Voltage - Breakdown (Min): 11.7V
  • Voltage - Clamping (Max) @ Ipp: 19V
  • Current - Peak Pulse (10/1000µs): 43.5A
  • Power - Peak Pulse: 400W
  • Type: Zener
  • Unidirectional: Yes

Detailed Pin Configuration

The P4SMA12A-E3/5A TVS diode has two pins: 1. Anode: Connects to the positive side of the circuit 2. Cathode: Connects to the ground or negative side of the circuit

Functional Features

  • Fast response time to transient surges
  • Low clamping voltage to limit the voltage across the protected circuit
  • High surge current capability for effective protection

Advantages and Disadvantages

Advantages

  • Effectively protects sensitive electronics from voltage transients
  • Fast response time ensures minimal impact on the protected circuit
  • Low clamping voltage helps in limiting the voltage stress on the circuit

Disadvantages

  • May require replacement after withstanding multiple transient events
  • Can introduce some capacitance into the protected circuit

Working Principles

When a transient voltage spike occurs, the P4SMA12A-E3/5A TVS diode rapidly conducts, providing a low-impedance path for the excess current to flow to the ground. This action clamps the voltage across the protected circuit, preventing damage to the sensitive electronics.

Detailed Application Field Plans

The P4SMA12A-E3/5A TVS diode finds extensive application in various fields, including: - Consumer electronics - Telecommunication equipment - Automotive electronics - Industrial control systems - Power supplies

Detailed and Complete Alternative Models

Some alternative models to the P4SMA12A-E3/5A TVS diode include: - P4SMA6.8A-E3/61 - P4SMA10A-E3/61 - P4SMA15A-E3/61 - P4SMA24A-E3/61

In summary, the P4SMA12A-E3/5A TVS diode is a crucial component in protecting sensitive electronics from voltage transients, offering fast response times and high surge current capabilities. Its application spans across various industries, making it an essential part of modern electronic systems.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací P4SMA12A-E3/5A v technických řešeních

  1. What is the maximum peak pulse power of P4SMA12A-E3/5A?

    • The maximum peak pulse power is 400 Watts for a 10/1000 μs waveform.

  2. What is the breakdown voltage of P4SMA12A-E3/5A?

    • The breakdown voltage is 12V, which means it starts conducting when the voltage exceeds this level.

  3. Can P4SMA12A-E3/5A be used for overvoltage protection in electronic circuits?

    • Yes, it is commonly used for overvoltage protection in various electronic circuits and systems.

  4. What is the typical clamping voltage of P4SMA12A-E3/5A?

    • The typical clamping voltage is 19.9V at 10A, which is the voltage level it limits the transient voltage to.

  5. Is P4SMA12A-E3/5A suitable for surge suppression in power supply units?

    • Yes, it is often employed for surge suppression in power supply units to protect against voltage spikes.

  6. What is the operating temperature range of P4SMA12A-E3/5A?

    • The operating temperature range is -55°C to +150°C, making it suitable for a wide range of environments.

  7. Does P4SMA12A-E3/5A comply with RoHS requirements?

    • Yes, it is compliant with RoHS (Restriction of Hazardous Substances) regulations.

  8. Can P4SMA12A-E3/5A be used for ESD (electrostatic discharge) protection in communication equipment?

    • Absolutely, it is commonly utilized for ESD protection in communication equipment and other sensitive electronics.

  9. What package type does P4SMA12A-E3/5A come in?

    • It is available in a DO-214AC (SMA) package, which is a popular surface mount package.

  10. Are there any recommended layout considerations when using P4SMA12A-E3/5A in a PCB design?

    • Yes, it's important to follow the manufacturer's recommended layout guidelines to ensure optimal performance and reliability.