Littelfuse SM10 Surface Mount Varistors

Littelfuse SM10 Series Surface Mount Varistors are Metal Oxide Varistors (MOV) that have ultra-high surge current handling capability. These varistors are specifically designed for primary circuit transient voltage surge protection and have a high maximum operating temperature of 125°C. The varistors are constructed with a MOV disc and tin-plated terminals within a polymer molded package, with fully qualified lead-free soldering. SM10 series varistors are RoHS compliant, lead-free, and halogen-free, and find application in general electronics and electrical products.

Features

  • AEC-Q200 qualified
  • Compliant with automotive-grade products and customers' requests
  • Environment-friendly
  • High surge energy/current absorption withstanding capability
  • Long lifespan and reliability
  • Reliable and suitable for high operating temperature applications
  • RoHS-compliant, halogen-free, and Pb-free
  • Suitable for SMT assembly process and saves PCB surface space
  • Vertical surface mountable

Applications

  • Electric vehicle onboarding and off-board charger
  • Electricity power storage
  • General electronic and electrical products

Technical Specifications

Parameters Values
Maximum Continuous Operating Voltage (MCOV) range Vrms 130V to 625V
Vdc 170V to 720V
Rated energy range 10/1000µs pulse 48J to 110J
2ms 34J to 100J
Peak surge current 5000A
Nominal discharge current 3000A
Surge life 15 pulses to 40 pulses
Maximum clamping voltage range 340V to 1650V
Typical capacitance range at 1kHz 160pF to 600pF