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P4SMA18CA from VISHAY

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P4SMA18CA

Manufacturer: VISHAY, GS

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Partnumber Manufacturer Quantity Availability
P4SMA18CA VISHAY, GS 120000 In Stock

Description and Introduction

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors The **P4SMA18CA** from **VISHAY** is a high-performance **surface-mount transient voltage suppressor (TVS) diode** designed to protect sensitive electronic circuits from voltage spikes and transients. This bidirectional TVS diode offers robust **18V clamping voltage** and is widely used in applications requiring reliable overvoltage protection, such as **telecommunications, industrial controls, and automotive systems**.  

With a **600W peak pulse power** capability, the P4SMA18CA efficiently absorbs transient energy, ensuring minimal impact on downstream components. Its compact **SMA (DO-214AC) package** makes it suitable for space-constrained PCB designs while maintaining excellent thermal performance.  

Key features include a **low clamping ratio**, fast response time, and high surge current handling, making it ideal for safeguarding data lines, power supplies, and I/O interfaces. The device meets **AEC-Q101** automotive qualifications, ensuring reliability in harsh environments.  

Engineers favor the P4SMA18CA for its **consistent performance, durability, and compliance with industry standards**, making it a trusted solution for transient suppression in modern electronics. Whether used in consumer electronics or industrial applications, this TVS diode provides an effective defense against electrical disturbances.

Application Scenarios & Design Considerations

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Alternative Part Number

  • SMAJ18CA --: Same SMA package bidirectional 18V TVS diode with comparable clamping voltage and power rating, widely available and pin-compatible.
  • SMBJ18CA --: Bidirectional 18V TVS in SMB package offering higher surge power margin; usable if board space allows the slightly larger footprint.
  • 1SMA18CAT3G --: Bidirectional 18V TVS diode in SMA package with similar standoff and clamping characteristics, suitable drop-in replacement.
  • SMAJ18CA --: Same SMA package bidirectional 18V TVS diode with comparable clamping voltage and power rating, widely available and pin-compatible.
  • SMBJ18CA --: Bidirectional 18V TVS in SMB package offering higher surge power margin; usable if board space allows the slightly larger footprint.
  • 1SMA18CAT3G --: SMA-packaged bidirectional 18V TVS diode with similar standoff and clamping characteristics, suitable drop-in replacement.

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