SP3522 Series - 0.15pF 22kV avalanche diodes

Roll Over to Zoom
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 SP3522 integrates ultra low capacitance cathode-to cathode silicon avalanche diodes to provide protection for electronic equipment that may experience destructive electrostatic discharges (ESD). This robust component can safely absorb repetitive ESD strikes above the maximum level specified in the IEC 61000-4-2 international standard (±8kV contact discharge) without performance degradation. The extremely low loading capacitance also makes it ideal for protecting high speed signal pins such as V-By-One®, HDMI, USB3.0, USB2.0, and IEEE 1394.


  • ESD IEC61000-4-2, ±22kV contact, ±22kV air
  • EFT, IEC61000-4-4, 40A (tp=5/50ns)
  • Lightning, IEC61000-4-5 2nd edition, 2.5A (tp=8/20μs)
  • Low capacitance of 0.15pF (TYP) at 3GHz
  • Low profile 0201 DFN packages and SOD882 packages
  • Facilitates excellent signal integrity
  • ELV Compliant
  • Moisture Sensitivity Level (MSL-1)
  • AEC-Q101 qualified
  • Halogen free, Lead free and RoHS compliant


  • Ultra-high speed data lines
  • USB 3.1, 3.0, 2.0
  • HDMI 2.0, 1.4a, 1.3
  • DisplayPort(TM)
  • V-by-One®
  • LVDS interfaces
  • Consumer, mobile and portable electronics
  • Tablet PC and external storage with high speed interfaces
  • Applications requiring high ESD performance in small packages 

Access specifications, certifications, check availability and order parts below

Catalog #Standoff
ESD Contact
SizePolarityChannelsPublic part (Yes/No)Product CategoryRoHSSamplesSBUPartner ECAD ModelsStockSamplesCompare
SP3522-01ETG7.01&22&222.514.5V@2.5A0.15SOD882Bidirectional1YesEnhanced ESDDiscreteTVSseriesYYesSBUSP3522-01ETGCheckOrder
SP3522-01UTG7.01.0&22&222.514.5V@2.5A0.150201 DFNBidirectional1YesEnhanced ESD Discrete TVS seriYYesSBUSP3522-01UTGCheckOrder
To request product environmental information, please complete the Product Environmental Information Request Form.