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P6SMB18A from VISHAY

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P6SMB18A

Manufacturer: VISHAY

UNI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 600 WATTS, 6.8 THRU 200 VOLTS

Partnumber Manufacturer Quantity Availability
P6SMB18A VISHAY 65000 In Stock

Description and Introduction

UNI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 600 WATTS, 6.8 THRU 200 VOLTS The **P6SMB18A** from **VISHAY** is a surface-mount **transient voltage suppressor (TVS) diode** designed to protect sensitive electronic circuits from voltage spikes and transients. With a standoff voltage of **18V** and a peak pulse power dissipation of **600W**, this component is ideal for safeguarding low-voltage applications in industries such as telecommunications, automotive, and consumer electronics.  

Featuring a **unidirectional** configuration, the P6SMB18A clamps excessive voltages to a safe level, ensuring reliable overvoltage protection. Its fast response time and low clamping voltage make it highly effective against electrostatic discharge (ESD), lightning surges, and inductive load switching events.  

The diode is housed in a **SMB (DO-214AA)** package, which provides a compact footprint while maintaining strong thermal performance. Its robust construction ensures durability in harsh environments, making it suitable for high-reliability applications.  

Key specifications include a **breakdown voltage** of **20.1V (min)** and a **maximum reverse leakage current** of **1µA** at the standoff voltage. Engineers favor the P6SMB18A for its balance of performance, size, and cost-effectiveness in circuit protection designs.  

For precise transient suppression in 18V systems, the P6SMB18A offers a dependable solution backed by VISHAY’s expertise in semiconductor technology.

Application Scenarios & Design Considerations

UNI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 600 WATTS, 6.8 THRU 200 VOLTS

Alternative Part Number

  • SMBJ18A --: Same SMB (DO-214AA) package, 18V standoff unidirectional TVS with comparable 600W peak pulse rating; widely available and directly drop-in compatible.
  • 1SMB18AT3G --: 600W unidirectional TVS diode in SMB package with 18V standoff voltage, matching the P6SMB18A's key electrical and mechanical specifications.
  • SMAJ18A --: 18V unidirectional TVS with similar clamping characteristics; SMA package is slightly smaller but electrically suitable for lower-power drop-in use where board space allows.

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