Hitachi Power Semiconductor Device, Ltd.

Skip to main content

Contact UsContact Us

Introduction of Surge Suppressor Diodes for automotive application

ZSH Series (Surge Suppressor Diodes for road dump)C
DAM Series (Surge Suppressor Diodes) 2 Lineup


Circuit protection from excessive surge voltages
Surge voltage protection for automotive electrical components

ZSH Series (Surge Suppressor Diodes for road dump)


  • IRSM = 70 ~ 130A, at 10/10,000µs waveform
  • Meets ISO16750-2 surge specification (Varied by test condition)
  • Small package
  • AEC-Q101 qualified
  • RoHS compliant

DAM Series (Surge Suppressor Diodes)


  • PRSM = 400W/600W/1200WCat 10/1,000µs waveform
  • Molding compound equivalent to UL 94 V-0
  • MSL equivalent to level 1
  • AEC-Q101 qualified
  • RoHS compliant

Status List


May. 11, 2023

Status list was updated.New

Click here for "Precaution for use"

In order to read a PDF file, you need to have Adobe Acrobat Reader installed in your computer.