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P6SMB440A from VISHAY

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P6SMB440A

Manufacturer: VISHAY, GS

Surface mount unidirectional and bidirectional Transient Voltage Suppressor Diodes

Partnumber Manufacturer Quantity Availability
P6SMB440A VISHAY, GS 121000 In Stock

Description and Introduction

Surface mount unidirectional and bidirectional Transient Voltage Suppressor Diodes The **P6SMB440A** from **VISHAY** is a high-performance **surface-mount transient voltage suppressor (TVS) diode** designed to protect sensitive electronic circuits from voltage transients and electrostatic discharge (ESD). This component is part of the **P6SMB series**, which is widely recognized for its robust clamping capability and fast response time, making it ideal for safeguarding power lines, data interfaces, and communication systems.  

With a **standoff voltage of 40V** and a **breakdown voltage range of 44.4V to 49.1V**, the P6SMB440A offers reliable overvoltage protection. It features a **low clamping voltage** and can handle **peak pulse currents up to 10A (8/20μs waveform)**, ensuring effective suppression of transient surges. The device operates within a **wide temperature range (-55°C to +150°C)**, making it suitable for industrial, automotive, and telecommunications applications.  

The **SMB (DO-214AA) package** provides a compact footprint, enabling efficient PCB space utilization while maintaining high power dissipation. Its **bidirectional configuration** allows for protection against both positive and negative voltage spikes, enhancing circuit reliability.  

Engineers favor the P6SMB440A for its **high surge capability, low leakage current, and compliance with industry standards**, making it a dependable choice for transient suppression in demanding environments.

Application Scenarios & Design Considerations

Surface mount unidirectional and bidirectional Transient Voltage Suppressor Diodes

Alternative Part Number

  • SMBJ440A --: Same SMB (DO-214AA) package, 440V standoff unidirectional TVS with comparable clamping voltage and power rating; widely available drop-in alternative.
  • 1SMB440A --: Unidirectional 440V standoff TVS in SMB package with similar surge capability, suitable direct replacement for the P6SMB440A.
  • SMAJ440A --: 440V standoff unidirectional TVS offering similar protection characteristics; SMA package is slightly smaller so verify footprint compatibility before use.
  • SMBJ440A --: Same SMB (DO-214AA) package, 440V standoff unidirectional TVS diode with comparable 600W peak pulse power, widely available and a direct functional drop-in.
  • 1SMB440A --: SMB package 400W-class unidirectional TVS with 440V standoff, similar clamping performance and footprint, suitable as a lower-power substitute.
  • SMAJ440A --: SMA (DO-214AC) 400W unidirectional TVS at 440V standoff; slightly smaller package but electrically compatible for many clamping applications.

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