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Surge protection: Failsafe chip varistors for automotive battery lines

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. 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).

  • 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 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
Type Ordering
code
Operating voltage, max. [V] Surge current, max. (8/20 µs) [A] Terminal voltage
[V]
VRMS  VDC
CT0805S14BAUTOGOM_G B72510G1140S862 14 16 120 42
CT1206S14BAUTOGOM_G B72520G1140S862 14 16 200 40
CT1210S14BAUTOGOM_G B72530G1140S862 14 16 400 40

Further information on the products can be found under www.tdk-electronics.tdk.com/en/ctvs.  

2020080602 / 06.08.2020 / Elektronické součástky / TDK Corporation /

Surge protection: Failsafe chip varistors for automotive battery lines
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. 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).
.....
Inductors: Compact dual inductors with high saturation current
TDK Corporation has extended its range of dual inductors to include the new EPCOS series B82477D6*. The seven series types cover an inductance range from 2 x 3.9 µH to 2 x 47 µH and are designed for maximum rated currents from 2.83 A to 7.05 A. A special feature of the inductors, which are certified according to AEC-Q200 and compatible with RoHS, are the high saturation currents of up to 16.1 A.
.....
Inductors: Compact dual inductors with high saturation current
Aluminum electrolytic capacitors: Compact design with high ripple current capability
Aluminum electrolytic capacitors: Compact design with high ripple current capability
TDK Corporation (TSE:6762) presents the new B43707* and B43727* series of EPCOS aluminum electrolytic capacitors with screw terminals. They are designed for rated voltages of between 400 V DC and 450 V DC and cover a capacitance range from 1800 µF to 18,000 µF.
.....
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