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P4SMA39CA from VISHAY

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P4SMA39CA

Manufacturer: VISHAY, GS

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Partnumber Manufacturer Quantity Availability
P4SMA39CA VISHAY, GS 120000 In Stock

Description and Introduction

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors **Introduction to the P4SMA39CA TVS Diode from VISHAY**  

The P4SMA39CA is a surface-mount transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuits from voltage spikes and electrostatic discharge (ESD). Manufactured by VISHAY, this bidirectional diode offers robust clamping performance with a standoff voltage of 39V, making it suitable for applications in power supplies, communication systems, and industrial electronics.  

Featuring a compact P4SMA package, the diode provides high surge capability and low clamping voltage, ensuring reliable protection against transient events. Its bidirectional configuration allows it to suppress both positive and negative voltage transients, simplifying circuit design in AC or DC systems. With a fast response time, the P4SMA39CA effectively diverts excess energy away from critical components, enhancing system durability.  

Key specifications include a peak pulse power dissipation of 400W (10/1000μs) and an operating temperature range of -55°C to +150°C, ensuring performance in harsh environments. The P4SMA39CA is RoHS-compliant, meeting modern environmental standards.  

Ideal for automotive, telecommunications, and consumer electronics, the P4SMA39CA combines high reliability with efficient transient suppression, making it a preferred choice for engineers seeking robust circuit protection solutions.

Application Scenarios & Design Considerations

Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors

Alternative Part Number

  • SMAJ39CA --: Same SMA package bidirectional 39V TVS diode with comparable clamping voltage and power rating, widely available and pin-compatible.
  • SMBJ39CA --: Bidirectional 39V TVS in SMB package offering higher surge power margin; usable if board space allows the slightly larger footprint.
  • 1SMA39CAT3G --: SMA-packaged bidirectional 39V TVS diode with similar electrical characteristics, suitable drop-in replacement from a different series.
  • SMAJ39CA --: Same SMA package bidirectional 39V TVS diode with comparable clamping voltage and power rating, widely available and pin-compatible.
  • SMBJ39CA --: Bidirectional 39V TVS in SMB package offering higher surge power margin; can replace with minor board space adjustment.
  • 1.5SMC39CA --: Bidirectional 39V TVS diode with 1500W peak pulse rating, suitable drop-in substitute when higher surge capability is acceptable.

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