TDK MT30 ThermoFuse™ Varistors

TDK MT30 ThermoFuse™ Varistors are metal oxide varistors that provide high peak surge currents of up to 25kA. These devices feature a leaded square varistor element and a compact size with a patented overmolded design. The series is UL 1449 recognized, type 1CA, and offers a short-circuit current rating (SCCR) of up to 200kA. TDK MT30 ThermoFuse Varistors are designed for use in surge protection devices, AC/DC distribution, inverters, and more.

Features

  • High peak surge current up to 25kA
  • UL 1449 recognized, Type 1CA (file number E321126)
  • Short-circuit current rating (SCCR) up to 200kA
  • Remote signal contact
  • Compact size with a patented over-molded design
  • Compliance with UL 1449-4 and IEC 61643-11

Applications

  • Surge protection devices
  • AC/DC distribution
  • Solar inverters
  • Uninterruptible power supplies (UPS)
  • Telecommunication
  • Household appliances

Specifications

  • <25ns response time
  • >2500VAC electric strength
  • IP20 ingress protection
  • <2500m application altitude
  • -40°C to +85°C operating temperature range

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Published: 2020-11-06 | Updated: 2025-12-12