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P4SMA540A from GSI

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P4SMA540A

Manufacturer: GSI, VISHAY

ARK Electronics - Surface Mount Transient Voltage Suppressors Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V

Partnumber Manufacturer Quantity Availability
P4SMA540A GSI, VISHAY 59000 In Stock

Description and Introduction

ARK Electronics - Surface Mount Transient Voltage Suppressors Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V **Introduction to the P4SMA540A TVS Diode from VISHAY**  

The P4SMA540A is a surface-mount transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuits from voltage spikes and transient events. Manufactured by VISHAY, this component offers robust surge protection with a peak pulse power rating of 400 W (10/1000 µs) and a standoff voltage of 54 V.  

Featuring a low clamping voltage, the P4SMA540A efficiently diverts excess energy away from critical components, safeguarding against electrostatic discharge (ESD), lightning-induced surges, and inductive load switching. Its compact SMA (DO-214AC) package makes it suitable for space-constrained applications, including power supplies, communication systems, and industrial electronics.  

Key specifications include a breakdown voltage of 60 V (minimum) and a fast response time, ensuring rapid reaction to transient threats. The diode operates over a wide temperature range (-55°C to +150°C), making it reliable in harsh environments.  

Engineers favor the P4SMA540A for its balance of performance and durability, making it an ideal choice for circuit protection in automotive, consumer, and industrial applications where transient suppression is critical. Its compliance with industry standards further reinforces its suitability for high-reliability designs.

Application Scenarios & Design Considerations

ARK Electronics - Surface Mount Transient Voltage Suppressors Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V

Alternative Part Number

  • SMAJ540A --: Same SMA package unidirectional TVS diode with 540V standoff voltage and similar clamping performance, widely available from a major TVS supplier.
  • SMBJ540A --: Unidirectional 540V TVS diode in SMB package offering higher surge rating and a drop-in electrical alternative when board space allows.
  • 1.5SMC540A --: 1500W 540V unidirectional TVS diode in SMC package providing comparable protection with higher peak pulse power for robust designs.
  • SMAJ540A --: Same SMA package unidirectional TVS with 540V standoff and similar clamping, direct functional drop-in from a different series.
  • SMBJ540A --: Unidirectional 540V TVS in SMB package offering higher surge rating; usable if board space allows the slightly larger footprint.
  • 1.5SMC540A --: 1500W 540V unidirectional TVS in SMC package, provides higher peak pulse power and is a robust alternative when layout permits.

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