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P4SMA47CA from VISHAY

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P4SMA47CA

Manufacturer: VISHAY, GS

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Partnumber Manufacturer Quantity Availability
P4SMA47CA VISHAY, GS 120000 In Stock

Description and Introduction

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors # Introduction to the P4SMA47CA TVS Diode by VISHAY  

The **P4SMA47CA** is a surface-mount **Transient Voltage Suppression (TVS) diode** designed by **VISHAY** to protect sensitive electronic circuits from voltage transients, electrostatic discharge (ESD), and other surge events. This bidirectional diode offers robust clamping performance, making it suitable for applications in power supplies, communication systems, and industrial electronics.  

With a **standoff voltage of 47V** and a **peak pulse power rating of 400W**, the P4SMA47CA efficiently diverts excess energy away from critical components, ensuring reliable operation in harsh electrical environments. Its fast response time and low clamping voltage help minimize stress on protected circuits.  

Housed in a **DO-214AC (SMA) package**, the diode is compact and compatible with automated assembly processes, making it ideal for high-density PCB designs. Its bidirectional nature simplifies circuit implementation by eliminating polarity concerns.  

Common applications include **telecommunications equipment, automotive electronics, and consumer devices**, where transient protection is essential for longevity and performance. The P4SMA47CA combines durability with high surge capability, making it a dependable choice for engineers seeking robust overvoltage protection.  

For detailed specifications, consult the manufacturer's datasheet to ensure proper integration into your design.

Application Scenarios & Design Considerations

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Alternative Part Number

  • SMAJ47CA --: Same SMA package, 400W bidirectional TVS with 47V standoff voltage, direct functional equivalent from a different series.
  • SMBJ47CA --: Bidirectional 47V TVS in SMB package with higher 600W surge rating, suitable drop-in upgrade if board space allows.
  • 1SMA47CAT3G --: SMA-packaged 400W bidirectional TVS with matching 47V standoff, different naming series and widely available.
  • SMAJ47CA --: Same SMA package bidirectional 47V TVS diode with comparable clamping voltage and power rating, widely available and pin-compatible.
  • SMBJ47CA --: Bidirectional 47V TVS in SMB package offering higher surge power margin; usable if board space allows the slightly larger footprint.
  • 1.5SMC47CA --: Bidirectional 47V TVS with 1500W peak pulse rating in SMC package, providing extra surge protection headroom as a robust substitute.

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