SL1021B350RS - SL1021B Series

Series: SL1021B
Replaced By: SL1021B350RF
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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.

The SL1021B series offers high levels of performance on fast rising transients in the domain of 100V/µS to 1KV/µS, which are those most likely from induced Lightning disturbances. The SL1021B series also features ultra low capacitance (typically 1pF or less) and optimised internal geometry which provides low insertion loss at high frequencies, so are ideal for the protection of broadband equipment. These devices are extremely robust and are able to divert a 20,000A pulse without destruction.


  • Excellent response to fast rising transients.
  • Ultra low capacitance.
  • 10KA surge capability tested with 8/20µS pulse as defined by IEC 6100-4-5
  • 20,000A single shot surge capability tested with 8/20µs pulse as defined by IEC 6100-4-5
  • Available with thermal failsafe option (add 'F'suffix to part number)

    • Broadband equipment
    • ADSL equipment
    • XDSL equipment
    • Satellite and CATV equipment
    • General telecom equipment
  • URicon UR_QVGQ2_E128662

    pdficon Gas Discharge Tubes SL1021B Datasheet

    pdficon Circuit Protection Technology Application Matrix

    Littelfuse is the world leader in the design and manufacturing of fuses for the automotive industrial handheld computer and telecom markets...

    Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
    SL1021B350RS GP 3T B350V RADIAL + SOLDER FS RoHS No 01/01/2005 PbFree No 01/01/2005 No
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