EPCOS / TDK B722 SNF AdvanceD SIOV Metal Oxide Varistors

EPCOS B722 SNF AdvanceD SIOV Metal Oxide Varistors by TDK are high operating temperature (up to +125°C) varistors with high surge current ratings up to 10kA. The round varistor element is packaged in a silicone resin UL 94V-0 flame-retardant coating with tinned wire terminals. The high-energy AdvanceD Series E2 varistors feature high energy ratings up to 400J, a wide operating voltage range of 130VRMS to 625VRMS, enhanced resistance against heat and humidity [85°C, 85% r.h., 0.85 - VV (1mA), 1000h], and can be used in harsh environments. 


  • High-energy AdvanceD series E2
  • High surge current ratings up to 10kA
  • High energy ratings up to 400J
  • Wide operating voltage range from 130VRMS to 625VRMS
  • Enhanced resistance against heat and humidity
  • For use in harsh environments
  • PSpice models
  • Round varistor element, leaded
  • Silicon resin coating, flame-retardant to UL 94V-0
  • Tinned wire terminals


  • Power supplies and converters for industrial electronics applications
  • Household appliances
  • Telecommunication devices


  • 130VRMS to 625VRMS operating voltage range
  • 240V to 1kV varistor voltage range
  • 395V to 1.65kV clamping voltage range
  • 800A to 10kA peak surge current range
  • 60pF to 1550pF capacitance range
  • 7.5J to 360J surge energy rating range
  • 7mm to 23.5mm diameter range
  • -40°C to +125°C operating temperature range
Published: 2018-06-22 | Updated: 2023-07-18