SP4042 Series - 3.3V Diode Array

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 SP4042 integrates low capacitance steering diodes with a TVS diode to provide 2 channels of protection against lightning induced surge events and ESD. This robust device can safely absorb up to 120A per IEC61000-4-5 (tP= 2/10μs) without performance degradation and a minimum ±30kV ESD per IEC61000-4-2 international standard. The low loading capacitance makes the SP4042 ideal for protecting Ethernet interfaces.


  • ESD, IEC61000-4-2, ±30kV contact, ±30kV air
  • Lightning, IEC61000-4-5, 2nd edition,120A (tP=2/10μs)
  • EFT, IEC61000-4-4, 40A (tP=5/50ns)
  • Low capacitance of 11pF(TYP) per line
  • Low leakage current of 0.1μA (MAX) at 3.3V
  • Lead-free and RoHS compliant


    • 10/100/1000 Ethernet Interfaces
    • Customer Premise Equipment (CPE)
    • Carrier Class Equipment
    • PBX Systems

    Access specifications, certifications, check availability and order parts below

    Catalog #AEC-Q101 QualifiedStandoff
    ESD Contact
    ESD Air
    SizePolarityChannelsPublic part (Yes/No)Product CategoryRoHSSamplesPartner ECAD ModelsStockSamples
    SP4042-02UTGYES3.30.1&30&301201711uDFN-10Bidirectional2YesLightning Surge ProtectionYYesSP4042-02UTGCheckOrder
    To request product environmental information, please complete the Product Environmental Information Request Form.