S4X8TS - SxX8xSx Series

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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.

New device series offers high static dv/dt and lower turn-off (Tq) sensitive SCR with its small die planar construction design. It is specifically designed for GFCI (Ground Fault Circuit Interrupter) and Gas Ignition applications. All SCRs junctions are glass-passivated to ensure long term reliability and parametric stability.


  • RoHS compliant and Halogen-Free
  • Thru-hole and surface mount packages
  • Surge current capability > 10Amps
  • Blocking voltage ( VDRM / VRRM ) capability - up to 800V
  • High dv/dt noise immunity
  • Improved turn-off time (tq) < 25 μsec
  • Sensitive gate for direct microprocessor interface 


The SxX8xS series is specifically designed for GFCI (Ground Fault Circuit Interrupter) and gas ignition applications.


2021-08-12_IATF 16949_ LF Semiconductor_Wuxi

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Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
S4X8TSRP Sen SCR 400V .8A 200?A SOT223 RoHS No 09/01/2004 PbFree No Yes
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