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Surge protection: Failsafe chip varistors for automotive battery lines

TDK Corporation presents a new range of Open Mode chip varistors for electronic automotive assemblies that are directly connected to the battery.

Surge protection: Failsafe chip varistors for automotive battery lines

  • Open Mode design
  • Fulfilment of failsafe requirements according to VW standard VW 80808-1, 2020-03 edition
  • Qualified according to AEC-Q200 and VW standard VW 80808-2, 2020-03 edition
  • Reliable protection against transients according to ISO 7637-2

The new chip varistors offer reliable protection against transient surge voltages according to ISO 7637-2, and meet the failsafe requirements according to the VW standard VW 80808. Even when subject to excessive bending stress, short-circuits are avoided, which is particularly important for unswitched battery terminals (e.g. terminal 30).

The new surge protection components are designed for an operating voltage of 14 VRMS or a maximum direct voltage of 16 VDC. The three types of the B725*0G1140S862 series are designed for surge currents of 120 A, 200 A and 400 A, with each 8/20 µs. Depending on the surge current capability, the chip varistors are available in sizes EIA 0805, 1206 and 1210, and are suitable for a wide temperature range of -55°C to +150°C.

Main applications

  • Automotive applications, which are directly connected to the battery

Main features and benefits

  • Open Mode design
  • Fulfilment of failsafe requirements according to VW standard VW 80808-1, 2020-03 edition
  • Qualified according to AEC-Q200 and VW standard VW 80808-2, 2020-03 edition
  • Reliable protection against transients according to ISO 7637-2
  • Wide temperature range from -55°C to +150°C

Characteristics


Surge protection: Failsafe chip varistors for automotive battery lines

www.tdk-electronics.tdk.com

 

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