SP3420 Series - 0.32pF, 6A Diode Array

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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.

The SP3420 includes four channel ultra low capacitance and high-level ESD protection diodes to protect high-speed data rate such as USB 3.1, DisplayPort, Thunderbolt, and e-SATA. The typical capacitance of 0.32pF helps ensure signal integrity and this robust device can safely absorb repetitive ESD strikes at the maximum level specified in the IEC 61000-4-2 international standard (Level 4, ±8kV contact discharge) without performance degradation safely dissipate 6A of 8/20μs surge current (IEC 61000-4-5 2nd edition).


  • ESD, IEC 61000-4-2, ±12kV contact, ±15kV air 
  • EFT, IEC 61000-4-4, 40A (5/50ns) 
  • Lightning, IEC 61000- 4-5 2nd edition, 6A (tP=8/20μs) 
  • Low capacitance of 0.32pF@1.5V (TYP) 
  • Low leakage current of 0.02μA (TYP) at 3.3V
  • Low operating and clamping voltage 
  • AEC-Q101 qualified 
  • Halogen free, Lead free and RoHS compliant 
  • Moisture Sensitivity Level (MSL -1)

Markets/ Applications:

  • Ultra-high speed data lines 
  • USB 3.1, 3.0, 2.0 
  • DisplayPort(TM) 
  • Thunderbolt (Light Peak) 
  • V-by-One®
  • LVDS interfaces 
  • Consumer, mobile and portable electronics 
  • Tablet PC and external storage with high speed interfaces

Access specifications, certifications, check availability and order parts below

Catalog #AEC-Q101 QualifiedStandoff
ESD Contact
PolarityChannelsCheck StockPartner ECAD ModelsStockSamples
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
SP3420-04UTG 3.3V 6A .32pF 12kV DFN2510-10L TVS Array RoHS No 01/23/2020 PbFree No 01/23/2020 CoC_RoHS10_SP3420-04UTG_01-23-2020 REACH219_Declaration_SP3420-04UTG_08-19-2021 Yes
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