NS6AxxAF Series - Unidirectional Transient Voltage Suppressor, 500 W

Series: NS6AxxAF
Availability: Phase Out/Obsolete

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

This series will be End of Life (EOL) on December 31, 2017 and is not recommended for new designs. Replacement will be the SMA6L series.

The NS6AxxAF is designed to protect voltage sensitive components from high voltgage, high energy transients. This device had excellent clamping capability, high surge capability, low zener impendance and fast response time. The NS6AxxAF is ideally suited for use in computer hard disk drives, communication systems, automotive, numerical controls, process controls, medical equipments, business machines, power supplies and many other industrial/consumer applications.


  • Peak Reverse Working Voltage of 5 V
  • Peak Pulse Power of 500 W (10 x 1000 µsec)
  • ESD Rating of Class 3 (>16 kV) per Human Body Model
  • ESD Rating of Class 4 (>8 kV) IEC 6100042
  • Fast Response Time


  • Transient Voltage Suppression

End Products:

  • Communications Systems
  • Automobiles
  • Power Supplies

Access specifications, certifications, check availability and order parts below

Catalog #PolarityPartner ECAD ModelsSamplesCompare
Obsolete: 2018 -06-30
Replaced By: SMA6L12A
Obsolete: 2018 -06-30
Replaced By: SMA6L13A
Obsolete: 2018 -06-30
Replaced By: SMA6L15A
Obsolete: 2018 -06-30
Replaced By: SMA6L24A
Obsolete: 2018 -06-30
Replaced By: SMA6L28A
Obsolete: 2018 -06-30
Replaced By: SMA6L30A
Obsolete: 2018 -06-30
Replaced By: SMA6L33A
Obsolete: 2018 -06-30
Replaced By: SMA6L36A
Obsolete: 2018 -06-30
Replaced By: SMA6L5.0A
Obsolete: 2018 -06-30
Replaced By: SMA6L64A
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
NS6A13AFT3G SMA-FL 13V UNIDRCTNL 600W RoHS No 07/05/2017 PbFree No CoC_RoHS9_NS6A13AFT3G REACH181_Declaration_NS6A13AFT3G
Does not Contain
NS6A5.0AFT3G SMA- FL 5V UNIDRCTNL 600 RoHS No 07/05/2017 PbFree No REACH181_Declaration_NS6A5.0AFT3G
Does not Contain
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